nowfound

Dev tools · alternatives · 2026

WJ

24 alternatives to We just enabled Vercel's preview comments on our docs page

We've been having a hard time getting feedback on our docs. Some people post GitHub issues or send us pull requests, but we've heard that the friction is too great for little things like typos, etc. We thought Vercel's preview might be a decent solution to lower the friction for people with Vercel accounts. Vercel injects a code bundle into the site, similar to a browser extension, automatically setting up a commenting system and UI for us. If you want to see how it looks, check it out here: https://docs.plasmo.com/

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. We just enabled Vercel's preview comments on our docs page launched in 2022; newer entries below may have overtaken it.

  1. 1

    Hey everyone, Really excited to share what I've been working on. Rapidpages is a prompt-first online IDE, think midjourney for front-end developers. I've been working on this for a while and it's great to see some interest from companies like Vercel in this space. All you need for self-hosting is an OpenAI key and a GitHub oauth app. Simply clone the repo and play with it. It's also available on the cloud at www.rapidpages.io Please give it a try and let me know if you have any feedback, and if you like what I'm doing with Rapidpages, please give it a star on GitHub. Thanks!

    2023 · github.com · its alternatives →

  2. 2

    I'm Rufus, one of the founders of Flowershow. We love markdown and use it everywhere from making websites, to docs, to knowledgebases. Plus AI splits it everywhere now. Got tired of the framework/config/deploy overhead every time we wanted to share a file or put a site online. So we built the thing we wanted. Files in. Website out. "Vercel for Content" is our aspiration - make deploying (markdown) content as fast, seamless and easy as Vercel did for JS. Command line plus you can connect to github repos, use Obsidian via plugin, or drag and drop files. npm i -g…

    Mar 2026 · flowershow.app · its alternatives →

  3. 3

    Fast website feedback for designers and developers

    2019 · usepastel.com · its alternatives →

  4. 4

    Vercel for backend

    2024 · bunnyshell.com · its alternatives →

  5. 5AG

    I built this small app for fun, to play with image generation thanks to Vercel’s new library [1]. You enter your GitHub username (or anyone’s), and it generates an image with a few info about your account. [1] https://vercel.com/docs/concepts/functions/edge-functions/og...

    2022 · github-business-card.vercel.app · its alternatives →

  6. 6

    Hey HN, I'm a freelance web developer and got tired of the endless email chains during website QA. Clients would send screenshots with red circles, or worse, Word docs with "the button on the page with the thing." I'd spend more time decoding feedback than actually fixing stuff. So I built Commentblocks. You add a script to your staging site, send clients a link, and they click anywhere on the page to leave a comment. That's it. No signup for them, no explaining how to use it. Each comment captures the exact element, viewport size, browser, and URL. Comments show up in a dashboard or can go…

    Feb 2026 · commentblocks.com · its alternatives →

  7. 7

    Hi HN, I’m Valentin, a developer who’s found code reviews to be a slow process, especially after context switching or juggling different projects and languages. Even reviewing my own code can be tough when I’ve lost the thread or just need a fresh perspective. Over the past few weekends, I built GitReviewed to make PR reviews faster, smarter, and genuinely useful for real teams. What it does: - Reviews any GitHub or GitLab pull/merge request with AI-powered comments, spotting security issues, code patterns, typos, and more - Posts comments as you (not a bot), so feedback fits naturally…

    2025 · gitreviewed.com · its alternatives →

  8. 8

    Hey again HN. Isaac and I originally released a voice-first code review tool, but have since open-sourced it and turned it into just a better way to review your and your team's Github PRs. Main things we've heard that make code reviews slower are: 1) PRs are too big and overwhelming 2) Need to jump around to find the right context and relevant code 3) Need to spend time thinking (should not be a thing since AI exists), and writing comments What we built to address these: 1) PRs are split up into sub-PRs without needing to actually split them up and stack them yourself -> Automatically done…

    2025 · github.com · its alternatives →

  9. 9

    A simple, semi-headless CMS for Vercel-hosted Nextjs blogs.

    Jan 2026 · blogsforvercel.com · its alternatives →

  10. 10

    I’ve spent the last 2.5 months building a product that runs LLM-powered code reviews on my pull requests — and I just launched it. The tool is built specifically for solo developers. You install it on your repo, trigger a scan by creating a pull request, and it leaves structured review comments using OpenAI under the hood. Funnily enough, I used the dev version of this app to review its own pull requests while building it. It helped me spot bugs, simplify structure, and keep quality high — all with minimal need for another human in the loop. Things I want to try out in the next months : -…

    2025 · codii.dev · its alternatives →

  11. 11IB

    Prepend any Github PR URL with `makesense` to get a - quick review for all sorts of issues (cleanly designed issue explorer) - summary of changes in concise slide deck to grasp the essence of changes - a 5 question quiz on the changes to make sure there's "cognitive coverage" of the change There's also a handy bookmarklet using which you can trigger a review for any publicly accessible Github PR Feedback welcome

    Jul 2026 · makesensegithub.com · its alternatives →

  12. 12GA

    Hi everyone, i just develop an engine to allow you to render your blog using github directly, by just using html, json, markdown. Here's the demo: https://porfolio-one-rust.vercel.app/revskill10/porfolio-tem... and the source: https://github.com/revskill10/porfolio-template/tree/main/bl... Currently you can use it as the starting point template and hack on it. Would love to hear your feedback.

    2025 · its alternatives →

  13. 13

    Deploy like Vercel but full-stack applications + databases.

    Jun 2026 · better-paas.com · its alternatives →

  14. 14AS

    Create a review as you would on pastebin, then any line in a review can be clicked to leave a comment. Comments appear under the line they reference and can be hidden by clicking the red tabs on the left or right. You can optionally toggle all comments by clicking the speech bubble at the top of the review. You don't have to have an account to create a review or leave a comment. I plan on adding multi-file reviews as well as version control access in the next few releases. After that I plan on making some IDE plugins to allow users to send code directly to the site via their IDE. Let me know…

    2012 · codetique.com · its alternatives →

  15. 15

    Hi HN I built a fun little tool: It uses Groq’s LLaMA 3.3 + Puppeteer to analyze a website Then it roasts the design/content/UX with humor And finishes with 3–5 genuinely helpful improvement tips You can try it here: https://ai-roast-vert.vercel.app I wanted to: Practice fast idea-to-launch cycle (built in 2 days) Experiment with a viral-friendly product Monetize with a $0.55 pro version that gives a detailed roast + download Would love your feedback — on the idea, the tone, the usefulness — anything! Thanks in advance

    2025 · ai-roast-vert.vercel.app · its alternatives →

  16. 16

    I built this tool a couple days ago to temporarily hide your prints & comments. I wanted to focus on the core logic without having to constantly delete/add prints and comments. Lmk if you like it ;)

    2024 · marketplace.visualstudio.com · its alternatives →

  17. 17AC

    Check out http://swrm.io Basically, we created a feedback platform, and launched it as a tool to allow designers to crowdsource feedback from other designers. The idea is that this tool would allow designers to improve, share knowledge, learn new skills, and consistently deliver their best work. There's a lot that still needs to get done, including making money, letting posts die out after a certain time, and making the site faster by generating image thumbnails. Any feedback would be appreciated and I'd be happy to answer any questions. Feel free to sign up. Thanks!

    2012 · swrm.io · its alternatives →

  18. 18

    Hey HN, Inspired by Vercel’s automated preview deployments, I built a GitHub Actions workflow that generates an Expo QR code per PR—so mobile previews are as easy as scanning a QR code. How it works: • Every PR triggers a GitHub Action • The action starts an Expo server • It posts a QR code in the PR comments for instant testing on mobile No more manually starting Expo. No more copying links. Just open a PR and scan the code. Full guide here: https://torii.studio/guides/expo-qr-previews Would love to get feedback—how would you improve this workflow?

    2025 · torii.studio · its alternatives →

  19. 19

    Howdy friends! Tell me if this is an atrociously terrible idea - I've been working on building a leetcode for clientside devs so we can practice React and Javascript interview questions in a more concise way, I call it clientside.dev I just finished a beta version of it yesterday and plan on releasing it with many more problems on Jan 1st but it's there if you wanna play with it open to any ideas / feedback however mean or nice it may be :)

    2022 · vacation-call-335691.framer.app · its alternatives →

  20. 20AW

    Hey, I've made a pdf reader with ai assistance, you can quickly ask questions about the text and the images, and it will have context about all of your reading material so you can ask questions freely, try it now, I'm in open beta to find bug and get feedback. upcoming features: - Highlighting - Highlighting with Notes - Bibliography - Automatic Reference file opening - Improved UX and robustness currenlty alot of bugs so please let me know if you found any. feedback appreciated

    2025 · pdf-hub.com · its alternatives →

  21. 21

    Review your rendered markdown site like a Google Doc: select a passage, comment, and an AI agent (Claude or Codex) resolves it into a clean git diff. Local-first, in-browser. - bharadwaj-pendyala/sidenote

    Jul 2026 · github.com · its alternatives →

  22. 22

    I participated in the Nvidia + Vercel 2 hour hackathon in SF tonight, and built something I've wanted, but hadn't tried building. I implemented an MCP Server and VS Code extension to allow Claude Desktop to place breakpoints, step through code, and execute expressions (assuming language support). So you can ask it a question that requires actually stepping through the code and now it can actually do that - check values for you, etc. It's _definitely_ not perfect. Have improvements? Please make a PR!

    2025 · github.com · its alternatives →

  23. 23

    Simple & lightweight feedback—No Code Install on Any Website

    2024 · its alternatives →

  24. 24

    This is a tool which lets you easily manage different versions of ideas, helpful for writing essays. I've found myself wanting this every single time I go through the drafting process when writing, and I've been frustrated every time I find myself accidentally working on an old draft just because there was a paragraph that I liked better. This solves it. I hope the community like this as much I enjoyed working on it! Note that it's currently a beta waitlist because there's some bugs with the undo/redo state management and so I want to dogfood it for a bit for reliability. It says April…

    Mar 2026 · quillium.bryanhu.com · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →

We just enabled Vercel's preview comments on our docs page…