DevToolStack

What it does

DevToolStack is a collection of 100+ open, fast, and dependency-free developer tools—all running client-side in your browser. From encoding and generation to formatting and conversion, every tool loads instantly with zero sign-ups or backend dependence. Build faster. Think less about infrastructure. Spend more time coding. Why this works: Emphasizes speed, no friction, and the "zero backend" differentiation. Appeals to both indie developers and teams tired of scattered tool ecosystems.

125 free online developer tools — JSON formatter, Base64 encoder, hash generator, text converters and more. No sign-up. No install. Runs entirely in your browser.

Lightning-fast utilities to format, decode, encode, and test your text strings and code snippets. No sign ups. No server latency. Just pure client-side performance. Test regular expressions with live match highlighting, capture groups, and flag toggles — debug your regex instantly. Free, client-side regex tester. Compare two blocks of text and see line-by-line differences highlighted instantly — additions and deletions color-coded. Free, client-side diff tool. Count words, characters, sentences, and paragraphs in real time as you type. Free, instant word counter for essays, meta descriptions, and tweets. Find which words repeat most in your text and how often. Free keyword density checker…from devtoolstack.io

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  DevTools2023 · ray.run · ▲74

  Making your everyday tasks a breeze

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  DevToolStackMay 2026 · devtoolstack.in · ▲2

  DevToolStack — Free browser-based developer tools

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  DevTools2025 · onlinewebdevtools.com · ▲18

  Collection of free online tools to help in web development

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  DevToolKitFeb 2026 · devtoolkit.site · ▲2

  Free browser-based dev tools — no signup, no tracking

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  DevTabJul 2026 · devtab.in · ▲5

  110+ dev tools. One tab. Zero server calls.

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  DevToolHubJun 2026 · devtoolhub.cc · ▲2

  100+ free developer tools, no signup, no install

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  /dev/null▲490

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 29d ago · corespeed.io

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  The load-bearing vocabulary of Claude▲710

  Life & fun · Aug 2026 · louisabraham.github.io

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  Hey Noah▲656

  A proactive AI executive assistant for founders

  AI · Aug 2026 · heynoah.io

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  Clipto MCP▲655

  Hey HN, We recently built Clipto. It’s a tool that lets you search over terabytes of video, audio, and images on your computer, without relying on the cloud. Motivation: we probably all had this similar experience, we know a moment exists in a video or audio, but finding it takes hours scrubbing the timeline. You can send all the media to process in the cloud, but it’s slow, expensive and raises privacy concerns. So we decided to build our own on-device media search engine. How it works (high level): 1. We ingest video, audio, image; normalize formats via ffmpeg; run content analysis to…

  Work · Aug 2026 · clipto.com

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  Simple algorithm and color space to generate diverse skin tones▲627

  Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…

  Life & fun · Aug 2026 · toneyalexander.github.io

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  AdAnt AI▲620

  Claude for viral, high-converting social ads

  AI · Aug 2026 · adant.ai

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  Astute▲606

  Automate your B2B brand going viral, with new media creators

  AI · Aug 2026 · company-app.joinastute.com