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Cusdis is 5KB of comments. VeloCMS is the rest of the website.

Cusdis genuinely wins on embed weight (~5KB — the lightest available), MIT open-source, Next.js + TypeScript native, and dev-blogger ergonomics. The gap: it sits on top of your existing CMS + email + members stack. VeloCMS wraps native comments in a full platform with members, newsletter, AI editor, and flat pricing.

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Cusdis vs VeloCMS — platform snapshot

Dimension	Cusdis	VeloCMS
Primary focus	Ultra-lightweight privacy-first comment system built in Next.js + TypeScript. Open-source MIT license, auditable on GitHub. The embed is approximately 5KB compressed — roughly half of Commento (~12KB) and ~50x lighter than Disqus (~250KB). No behavioral tracking, no third-party cookies, no ad revenue model. Cloud hosted version at cusdis.com: free tier (250 page-views/month), Pro at $5/mo (unlimited). Self-hosted: free software, you run a Next.js app + PostgreSQL or SQLite on Vercel, Railway, or your own server. Comment moderation dashboard, email notifications for new comments, single-level comment threads (replies are flat, not infinitely nested). Commenter authentication is anonymous — no login required to comment, commenters provide name + email only. Spam moderation is manual (approve/reject queue) plus basic email-domain blocklists. No native CMS, no newsletter, no member paywall, no e-commerce.	CMS-first content platform with native commenting built into the same stack as posts, members, and newsletter. TipTap block-based blog editor with per-post SEO, JSON-LD schema, and AI drafting via Gemini. Native member system with free and paid tiers, magic-link reader authentication, and member-only post gating. BYOK Resend newsletter. BYOK Stripe for member subscriptions at 0% platform fee. 39 themes. Comments integrated directly with the member system — comment authors are your members with accounts tied to your platform. No separate comment SaaS bill. No devops overhead for the comment layer. Commenting, blogging, memberships, and newsletter in one admin.
Pricing	Cloud free: 250 page-views/month (not per comment — per page with the comment widget loaded). Good for low-traffic blogs or testing. Cloud Pro: $5/mo (unlimited page-views). Self-hosted: free software, but you need infrastructure (Vercel hobby = free up to usage limits, Railway ~$5/mo, or your own server). Cusdis is comments-only — you still need a separate CMS ($10–30/mo), separate email/newsletter service ($0–30/mo), and separate member paywall if you want reader subscriptions ($25–49/mo). Cusdis Cloud Pro at $5/mo is genuinely affordable for what it does — the issue is it adds to a bolted-together stack.	Flat monthly regardless of comment volume. 14-day free trial on any plan — card required, no charge until day 15. Pro $9/mo annual (full block editor, BYOK newsletter, AI drafting, 39 themes, custom domain, native comments included). Business $29/mo annual (all Pro + member tiers, BYOK Stripe digital products at 0% platform fee). No ads. No page-view ceiling. No separate comment SaaS. Comments in your PocketBase database — exportable any time for full data ownership.
Owned by	Randy (randychen), the original developer. Cusdis is an indie open-source project maintained by one developer, community contributors, and a small self-hosted user base. MIT license means the software is yours to run forever regardless of the project's future. Self-hosted Cusdis: comments in your own PostgreSQL or SQLite database, fully owned. Hosted Cusdis: comments on Cusdis's servers, exportable. Unlike Disqus (Zeta Global, ad-tech acquisition), Cusdis has no behavioral data monetization model. The indie + MIT + privacy posture is genuinely good.	VeloCMS, a product company building a headless CMS platform. Comments stored in your PocketBase instance (SQLite), exportable as JSON any time. Comment authors are your members — accounts tied to your platform, not a third-party commenting network. No third-party dependency for the comment layer.
CMS + blog	Not included. Cusdis is a comment widget — you embed it in a Next.js blog, Hugo site, WordPress install, or any static site. You need a separate CMS subscription or static site generator workflow. There is no blog editor, post management, theme system, or content admin inside Cusdis. The embed integrates via a script tag or Next.js component import (Cusdis publishes an npm package for React integration).	First-class. VeloCMS includes a TipTap block-based editor, post management admin, per-post SEO with JSON-LD, AI drafting via Gemini, 39 first-party themes, and ISR rendering for sub-1s LCP on blog pages. You don't need a separate CMS or static site generator — this is the CMS. Comments are one feature inside it, not a widget bolted on.
Page weight	Approximately 5KB compressed JavaScript embed — the lightest comment widget available today. This is Cusdis's strongest differentiator even against other lightweight comment alternatives like Commento (~12KB) or Remark42 (~50KB). The 5KB figure covers the widget code that renders the comment list, submission form, and approval state. No third-party tracking scripts, no ad network code, no cross-site behavioral analytics. For performance-obsessed developers measuring every kilobyte, this matters.	Comments rendered as Server Components in the initial HTML — the comment list has no separate JS bundle. The comment submission form hydrates client-side only when the reader scrolls to it. On a direct comparison: Cusdis adds ~5KB JS per page load from cusdis.com (or your self-hosted domain). VeloCMS adds near-zero incremental JS for the comment list since it is in the initial SSR HTML. There is also no additional DNS lookup for a third-party comment domain — the comment data comes from the same origin as the page.
Self-host complexity	Self-hosting Cusdis requires deploying a Next.js application (not just a binary) with a PostgreSQL or SQLite database. Vercel is the canonical deployment target and the docs are well-maintained for Vercel specifically. Railway, Render, and Fly.io work as alternatives. The self-host process is more straightforward than Commento (Go binary + manual TLS) for developers already familiar with Next.js deployments, since the tooling is the same stack. But it's still a separate running service alongside your blog — two deployments, not one.	VeloCMS is the CMS + comment system in one deployment. No separate comment service to maintain. On Railway-hosted VeloCMS: one Next.js service + one PocketBase service. Comments come with the platform — no additional deployment, no additional DNS record for a comment embed domain.
Members integration	Cusdis uses anonymous commenting — commenters supply a name and email without creating an account. There is no concept of a logged-in member. Cusdis does not integrate with any member paywall platform. You cannot gate comments to paid subscribers via Cusdis's native tooling — that would require custom code to verify member status before showing the Cusdis embed. The name + email approach is deliberately low-friction but means no connection between a commenter and a paying reader.	Native. You can configure any post to allow comments from: everyone, free members only, or paid members only. A paid member commenting is identifiable as a subscriber in your member dashboard. Commenter identity is their member account — same account they use to access gated content, receive newsletters, and manage their subscription.
Owned data	Self-hosted Cusdis: full data ownership — PostgreSQL or SQLite on your infrastructure, you control backups and migration. Cloud Cusdis (free or Pro): comments on Cusdis's servers, exportable JSON. The MIT license and self-hostable architecture mean Cusdis's data story is as clean as it gets for a comment SaaS — no behavioral data monetization, no Zeta Global provenance, no GDPR surprises. The privacy posture is genuinely excellent.	Full data ownership. PocketBase data exports as JSON any time. On Railway-hosted VeloCMS, the PocketBase volume is your data. No third-party data company involved. Comment data, member data, and post data are in the same owned database.

Feature parity grid — what each covers

Honest grid. Cusdis leads on embed weight, MIT open-source, Next.js native codebase, and anonymous commenting. VeloCMS leads on full-stack CMS, member integration, newsletter, AI editor, and flat single-tool pricing.

Feature	Cusdis	VeloCMS
~5KB ultra-lightweight embed (lightest comment widget available)	✓	—
Open-source MIT license (fork freely, audit every line)	✓	—
Next.js + TypeScript native codebase	✓	✓
Privacy-by-default (no tracking, no third-party cookies)	✓	✓
Self-hostable comment data	✓	—
Anonymous commenting (no account required)	✓	~
Zero ad revenue model (no ads on readers, ever)	✓	✓
Generous free cloud tier	✓	✓
Native CMS blog editor (TipTap, SEO, AI)	—	✓
Member paywall integration with comments	—	✓
Member-only comment gating (paid subscribers only)	—	✓
Newsletter blast (BYOK Resend)	—	✓
AI writing assist in editor	—	✓
39 themes with per-tenant customization	—	✓
Single admin for posts + comments + members	—	✓
No separate CMS required	—	✓

Where Cusdis leaves gaps

Cusdis is a well-designed ultra-lightweight comment system. These are the structural gaps that appear when you need more than a 5KB comment widget on top of a separate CMS, email, and membership stack.

Cusdis solves comments. Your blog still needs a CMS, email, and membership separately.

Cusdis Cloud Pro is $5/mo for a comment widget. Your Next.js blog on Vercel or Ghost is another $0–30/mo depending on the platform. Your newsletter service (Resend, Kit, Buttondown) is another $0–20/mo. Your member paywall (Memberful, Ghost memberships, etc.) is another $25–49/mo. The individual tools are all reasonably priced — and Cusdis is arguably the best deal in the comment widget category at $5/mo. The problem is that you’re managing four separate services with four separate admin panels and getting zero native integration between them. A paid subscriber who leaves a comment has two completely unrelated identities: one as a commenter in Cusdis, one as a member in your paywall platform. There’s no way to gate Cusdis comments to paid subscribers without custom code.

Self-hosting Cusdis is free, but it's still a second Next.js deployment to maintain.

Cusdis’s self-hosted path is more developer-friendly than most comment systems because it’s a Next.js app — the same stack as your blog. But it’s still a separate running service. You need to deploy it to Vercel, Railway, or your own server, configure a PostgreSQL or SQLite database, set environment variables, and keep it updated when Cusdis releases patches. For a developer already managing a Next.js blog deployment, adding a second Next.js service is a half-hour task. The ongoing maintenance is the quieter cost: two deployments to update, two services to monitor, two sets of environment variables to manage. Self-hosted Cusdis gives you comments at zero software cost; the engineering time cost is real.

Cusdis's 5KB win is real. The full-stack LCP comparison is more nuanced.

Cusdis’s ~5KB embed is a genuine engineering achievement — the lightest comment widget available. For a page where the comment section is one element among many, 5KB of JS from cusdis.com (or your self-hosted domain) is minimal. The full-stack comparison is more nuanced. On a server-rendered Next.js blog with VeloCMS, the comment list HTML arrives in the initial response — no separate embed domain DNS lookup, no client-side JS to render the thread. Cusdis’s 5KB embed fetches from a separate origin (cusdis.com or your self-hosted subdomain) on every page load. For Lighthouse and Core Web Vitals, third-party origin connections add latency that doesn’t show up in the KB count. VeloCMS comments being SSR from the same origin as the page is a meaningful LCP advantage in practice.

Honest trade-offs

Cusdis’s ~5KB ultra-lightweight embed, MIT open-source Next.js + TypeScript codebase, privacy-by-default design, and $5/mo Cloud Pro price are genuine advantages — especially for a developer building a personal blog and wanting the absolute minimum footprint for comments. Commento’s ~12KB and Disqus’s ~250KB make Cusdis the clear winner on embed weight in the privacy-first comment widget category. The MIT license means you can audit every line, fork it freely, and run it forever without depending on Cusdis’s commercial decisions. For a Next.js dev blog where comments are a nice-to-have and you already have a CMS you love, Cusdis self-hosted on Vercel is probably the best technical choice available today — near-zero cost, privacy-respecting, TypeScript native.

The calculation shifts when you zoom out to the full publishing stack. A blog with Cusdis + a CMS + a newsletter service + a member paywall runs $30–80/mo across four separate services, four separate admin logins, and no native connection between the person who comments and the person who subscribes. A paid member leaving a comment is two separate identities with zero relationship in the data. If you want comments integrated with memberships, newsletter subscribers, and content management in a single platform — or if you’re starting from scratch and choosing your full stack at once — VeloCMS gives you that at a flat price. If you’re building a Next.js dev blog and want only comments, Cusdis is the lightest tool for the job. If you want CMS + blog + comments + members + email under one roof, VeloCMS gives you that stack.

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Moving off Cusdis — what actually happens to your comments

1
Export your Cusdis comment data as a backup (optional) From the Cusdis dashboard (cloud or self-hosted), use the export feature to download your comment history as JSON, or query PostgreSQL/SQLite directly if you're self-hosted. VeloCMS doesn't import this file, but it's worth keeping as a record before you make any changes.
2
Decide: keep the Cusdis embed, or switch to native comments You can keep the Cusdis embed (script tag or the @cusdis/react component) running on your posts unchanged. Or switch to VeloCMS's native, ad-free comment system and start a fresh comment history from the day you switch — your existing Cusdis data stays wherever it's hosted, it just doesn't transfer in.
3
If you switch, configure moderation for native comments Cusdis uses a manual approval queue by default. VeloCMS lets you set per-post or global moderation defaults — require approval for everyone, auto-approve established members, or open commenting entirely — plus keyword-based spam rules if you had email-domain blocklists in Cusdis. Decide whether comments should be gated to free members, paid members, or open.
4
Remove the Cusdis embed once you've switched If you were using the script tag embed, remove it from your theme; if you were using the @cusdis/react npm package, uninstall it and remove the component from your post layout. VeloCMS renders native comments automatically — no embed code or package needed. Removing the Cusdis script drops its third-party connection overhead, worth a Lighthouse re-check.
5
Notify commenters and transition the community Cusdis commenting is anonymous (name + email, no account), so there's no Cusdis account to migrate either way. If you switch to native comments, readers need a free VeloCMS member account to comment going forward — a short announcement post or email pointing to sign-up helps. Paid members already have an account they can use immediately.

Pricing breakdown — the full stack comparison

Cusdis Cloud Pro is $5/mo for comments only — genuinely the cheapest hosted comment widget. You still need a CMS, email service, and member paywall. VeloCMS includes comments in the flat CMS plan — no separate comment SaaS.

Cusdis — comment widget on top of your stack

Cusdis Cloud Free250 page-views/mo. Good for testing or very low-traffic blogs.
$0
Cusdis Cloud ProUnlimited page-views. Comment widget only — no CMS, no members, no newsletter.
$5/mo
Cusdis Self-HostedMIT license free. Next.js + PostgreSQL/SQLite deployment = infrastructure + time cost.
Free
Your CMS (separate)Next.js SSG, Ghost, WordPress — not included in any Cusdis tier.
$0–30/mo
Newsletter service (separate)Resend, Buttondown, Kit — depends on list size. Not included.
$0–20/mo
Member paywall (separate)Memberful, Ghost memberships — no native Cusdis integration.
$25–49/mo

Cusdis Pro ($5/mo) + a self-hosted Next.js blog on Vercel ($0 hobby) + Resend newsletter ($0 up to 100 emails/day) + Memberful Starter ($25/mo) = $30/mo minimum for a full publishing stack with four separate dashboards and no native integration between commenter and member identity.

VeloCMS — CMS + comments + members in one

VeloCMS FreeSingle blog, VeloCMS subdomain, basic editor, native comments included.
$0
VeloCMS ProAnnual — full editor, BYOK newsletter, AI assist, 39 themes, custom domain, native comments.
$9/mo
VeloCMS BusinessAnnual — all Pro + member tiers with member-gated comments, BYOK Stripe, 0% platform fee.
$29/mo
VeloCMS AgencyAnnual — 5 tenant blogs on custom domains (extra sites $9/mo each), all including native comments.
$69/mo
Member subscriptions (BYOK Stripe)Your own Stripe account — standard 2.9%+$0.30, 0% VeloCMS cut.
0% platform fee

VeloCMS Pro at $9/mo covers the CMS blog, native zero-ad comments, and BYOK newsletter. No separate comment SaaS. VeloCMS Business at $29/mo adds member-gated commenting and BYOK Stripe — comparable or cheaper than a typical Cusdis + CMS + paywall stack at $30–60/mo.

Worked example — Cusdis Pro + CMS + newsletter + members vs VeloCMS all-in

Cusdis Pro + typical blog stack

Ghost Pro Starter (blog): $9/mo
Cusdis Pro (comments): $5/mo
Resend (newsletter, 100 emails/day free): $0/mo
Memberful Starter (paid memberships): $25/mo

Total: ~$39/mo

Four separate services. Commenter identity in Cusdis (name + email, no account), member identity in Memberful — no native connection. No member-gated comments without custom middleware. Add a higher Memberful tier or better newsletter service and you're at $50–80/mo.

VeloCMS Business (all-in)

VeloCMS Business (CMS + comments + members + newsletter): $29/mo
Resend (BYOK newsletter, included in plan): from $0/mo

Total: ~$29/mo

One admin for posts, comments, members, and newsletter. Member-gated comments native. No separate comment SaaS. $10/mo cheaper than the minimum Cusdis stack and native integration where Cusdis has none.

Cusdis Pro at $5/mo is the best price in the comment widget category — cheaper than Commento ($10/mo) and a great deal for what it does. The issue is always the same: it's additive, sitting on top of your CMS, email, and membership tools. VeloCMS comments are included in the platform price, not a separate line item.

Frequently asked questions

Can I migrate my Cusdis comment history to VeloCMS?

Not automatically — VeloCMS doesn't have a Cusdis import tool. Cusdis's own export (JSON from the dashboard, or a direct database query if self-hosted) gives you an offline record of your comment threads, but there's no path to bring that history into VeloCMS's native comments today. Most site owners either keep the Cusdis embed running alongside VeloCMS or start a clean comment history from the day they switch.

How does Cusdis's 250 page-views/mo free tier actually work?

Cusdis counts page-views as page loads where the Cusdis embed script was loaded, not individual comments. A post receiving 300 unique visitors in a month would exhaust the 250 PV free tier even if those visitors leave zero comments. For low-traffic personal blogs or early-stage projects, 250 PV/mo is workable. For any blog with meaningful traffic — even a modestly popular dev blog — the $5/mo Pro plan is effectively required. VeloCMS has no page-view ceiling on any plan. Comments on a viral post don't incur overage charges.

Does Cusdis support nested/threaded comments?

Cusdis supports single-level reply threading — replies to a comment appear beneath that comment, but you cannot reply to a reply (infinite nesting is not supported). This is a deliberate design choice that keeps the widget simpler and lighter. For most blog comment use cases, single-level threading is sufficient. If deeply nested discussion threads are important to your community (like a forum-style comment section), Cusdis's threading depth would be a limitation. VeloCMS native comments support configurable thread depth.

Is the Cusdis React npm package a good integration for Next.js blogs?

Yes — the @cusdis/react package is a legitimate React component wrapper for the Cusdis embed. It handles the script loading, theme detection (light/dark), and prop passing. For a Next.js blog built with App Router or Pages Router, the integration is straightforward. The package is maintained alongside the main Cusdis repo and tracks the embed version. This is one of Cusdis's genuine developer-experience advantages — no manual script tag management, proper React lifecycle handling, TypeScript types included. VeloCMS comments don't need a package because they're server-rendered in the CMS platform directly.

Can I restrict comments to paid members only on VeloCMS?

Yes, and this is one of the clearest functional gaps between Cusdis and VeloCMS. Cusdis uses anonymous commenting — commenters provide name and email only, with no account. There's no concept of a member tier or paywall tier in Cusdis. You cannot restrict Cusdis comments to paid subscribers without writing custom code to check member status before rendering the Cusdis embed. VeloCMS comments are natively tied to the member system: any post can require comments from everyone, free members only, or paid members only. A commenter's identity is their VeloCMS member account.

How does VeloCMS compare to Cusdis on page weight and LCP?

Cusdis adds ~5KB of JavaScript loaded from cusdis.com (or your self-hosted Cusdis domain) on every blog page. This triggers a DNS lookup to the Cusdis origin, a connection, and a script download. VeloCMS comment lists are Server Components — rendered HTML in the initial page response from the same origin. The comment submission form hydrates client-side on scroll. For Lighthouse LCP measurement, no third-party origin DNS lookup is significant: a new DNS resolution adds 20–100ms depending on the CDN and resolver. VeloCMS comment LCP is effectively zero additional latency. Cusdis's 5KB is already tiny, but same-origin SSR is faster in practice.

Is my data portable if I use VeloCMS instead of self-hosting Cusdis?

Yes, in the way that matters day to day. VeloCMS isn't open-source — Cusdis's MIT license is a genuine advantage if software freedom matters to you philosophically, and self-hosting it means you truly own every line running on your server. VeloCMS trades that for a broader platform scope (CMS + editor + members + newsletter + AI + e-commerce) as a managed SaaS — but you're never trapped inside it: every post, comment, member, and setting exports as JSON or CSV from the admin panel any time, no support ticket required.

What does VeloCMS offer that Cusdis doesn't?

VeloCMS leads on: native CMS blog editor with TipTap blocks, per-post SEO tooling and JSON-LD, AI writing assist via Gemini, 39 first-party themes, native member system with free and paid tiers, member-gated comments (paid-member-only comment threads), BYOK newsletter, BYOK Stripe digital products at 0% platform fee, single admin for posts + comments + members, and server-rendered comments at zero incremental JS. Cusdis leads on: ~5KB embed weight (the lightest available), MIT open-source license, Next.js + TypeScript native codebase, anonymous no-account commenting, and the ability to add comments to any website without changing your CMS.

Try VeloCMS free for 14 days

CMS blog, native privacy-respecting comments, BYOK newsletter, and member paywall — all in one admin. No separate comment SaaS bill. If you're migrating from Cusdis, the trial includes 14 days of hands-on migration support.

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Three bloggers evaluating Cusdis

Developer bloggers building Next.js sites, privacy-first indie publishers, and Disqus or Commento escapees comparing lightweight alternatives.

The dev-blogger building a Next.js site who wants only comments

You’re building a personal Next.js dev blog — probably with MDX, Next.js App Router, maybe Tailwind. You write about TypeScript, React, or tooling. You want readers to be able to leave comments without you running a heavy comment system. Cusdis is probably the best fit for this use case: ~5KB embed, npm package for React, MIT license, self-hostable on Vercel for free. If your blog is comments-only — no newsletter, no paid memberships, no e-commerce — Cusdis is excellent and VeloCMS is more than you need. See how VeloCMS is built for developer bloggers if you want the full picture of what VeloCMS adds for developers.

The privacy-first indie publisher wanting zero-tracking comments

You care deeply about your readers’ privacy. You switched from Disqus or another ad-tracked system because you don’t want behavioral tracking code on your site. Cusdis’s ~5KB embed, no tracking, no cookies, and MIT open-source codebase genuinely satisfy that requirement. If privacy is your primary concern and you’re not looking to consolidate your CMS, newsletter, or membership, Cusdis’s self-hosted version gives you the cleanest privacy posture available. The comparison shifts when you factor in the broader stack: a Cusdis + Ghost + Mailchimp + Memberful setup has four privacy policies to keep track of, not one. See VeloCMS vs Commento for comparison with the other major privacy-first comment system.

The Disqus or Commento escapee evaluating lightweight alternatives

You’ve decided to replace Disqus (ads, Zeta Global data, 250KB embed) or Commento (slightly heavier, $10/mo hosted). Cusdis is the lightest option in the privacy-first comment widget category and comes at the best price point ($5/mo Cloud Pro or free self-hosted). If your evaluation is strictly “which comment widget replaces what I have,” Cusdis wins on embed weight and price. If your evaluation is broader — “should I also reconsider my CMS, start a newsletter, or add paid memberships” — VeloCMS handles comments as part of that larger decision. See VeloCMS vs Disqus for the full Disqus replacement comparison.

Which archetype fits your situation?

The Cusdis vs VeloCMS decision comes down to whether you want the lightest possible comment widget on an existing stack, or a full publishing platform where comments are one first-class feature among many.

Dev-Blogger

Next.js dev blog, comments only, absolute minimum footprint

You write about TypeScript, React, or dev tooling. You want readers to leave comments without managing a heavy system. You care about bundle weight because your site is a showcase of your technical judgment. Cusdis is probably the right tool: ~5KB, MIT, Next.js native, self-hosted on Vercel for free. If your blog doesn’t need newsletter, memberships, or e-commerce — Cusdis is excellent and VeloCMS is more than you need. See how VeloCMS is built for developer bloggers if you want the full picture of what else VeloCMS adds.

Cusdis if comments are your only need. VeloCMS if you want to add newsletter, members, or a CMS editor.

Privacy-First Indie

Privacy-first indie publisher building a full content stack

You care about your readers' privacy and want zero-tracking comments. Cusdis's no-account anonymous commenting and MIT codebase genuinely satisfy that. But you also want a newsletter, paid memberships, and a proper CMS editor. Managing Cusdis + Ghost + Mailchimp + Memberful means four separate privacy policies and four admin dashboards. VeloCMS is one platform with one privacy posture: no ad tracking, BYOK architecture, full data export any time, and comments integrated with the member system. See VeloCMS for privacy-first publishers.

Cusdis if your stack is already set and you just need comments. VeloCMS if you want to consolidate.

Disqus or Commento Escapee

Leaving Disqus or Commento and evaluating lightweight alternatives

You’re done with Disqus (ads, Zeta Global, 250KB embed) or Commento ($10/mo, 12KB). Cusdis is the lightest and cheapest replacement in the privacy-first comment widget category: ~5KB embed, $5/mo Pro, MIT license. If your decision is strictly a widget swap — same CMS, same stack, just replace the comment system — Cusdis wins on weight and price. If you’re also questioning your CMS, newsletter, or membership at the same time, VeloCMS handles all of it. See VeloCMS vs Commento and VeloCMS vs Disqus for the full cluster comparison.

Cusdis for a pure comment-widget swap. VeloCMS if you want the full platform change.

Founder note

““Cusdis is genuinely impressive engineering. A 5KB comment widget in Next.js + TypeScript, MIT licensed, privacy-by-default — that’s the kind of indie open-source project that makes the ecosystem better. The architecture question is whether you want a comment widget or a publishing platform. If your blog is a dev portfolio and comments are the only thing you’re adding — Cusdis is the right answer. If you want a place where comments, posts, members, and newsletter all know about each other — that’s a different tool for a different scope of ambition.””

VeloCMS native comments are first-class — server-rendered in the initial HTML from the same origin as the page, integrated with the member layer so commenting and membership are the same identity, and included in the flat plan price.

Cusdis migration support: Every trial includes 14 days of hands-on migration assistance — deciding between the embed-in-parallel and native-comments paths, native comment moderation setup, Cusdis embed removal if you switch, and member-gated comment configuration if you want to gate commenting to paid subscribers. Start your trial and open a support request mentioning "Cusdis migration" to activate the dedicated migration track.

Commenting cluster:VeloCMS vs Disqus VeloCMS vs Commento VeloCMS vs Ghost