ZeroServer.tools
100% Private, Browser-Based Developer Utilities
ZeroServer.tools launched on May 13, 2026 with 1 votes.
What it does
Stop pasting sensitive JSON, JWTs, and API keys into random websites with unknown backends. ZeroServer is a suite of developer utilities built with a strict "Zero Server" architecture. Everything happens 100% locally in your browser’s DOM using native APIs. No data ever leaves your device. ✅ 100% Private: No backend, no tracking, no logs. ✅ Developer First: Built with Next.js 15 and Tailwind v4. ✅ Essential Tools: JSON/XML/JWT... Built for developers who value privacy as much as productivity.
979+ free developer tools — JSON formatter, Base64, hashing, converters & more. 100% private & client-side: no servers, no tracking, no signup.
I built all 979 tools here — I build private, client-side Next.js tools for teams. A suite of 979 hyper-fast utilities — JSON formatter, Base64, hashing, converters, generators & more. All of them run locally in your browser, so the JSON, tokens and config you paste in never touch a server. The twelve tools people reach for most. Everything else is in the full directory . Side-by-side or unified line/character diff comparison tool. Most “online” developer tools are a form that posts your input to somebody’s backend, formats it there, and posts the result back. That design is invisible in the UI and it is the whole problem: the moment you paste a production JWT into a decoder, that token…from zeroserver.tools
Does a similar job
all alternatives →
DevToolsMay 2026 · dev-tools-tan.vercel.app · ▲2Fast, private, and client-side developer tools in one hub
More dev tools this month
the category →
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲346Hi 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
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Product Hunt launch ↗
Launched alongside, May 2026
the whole month →
Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai
Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com
🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md
Dev tools · May 2026 · github.com