Free online developer tools — JSON, Base64, QR, and more.
4.8(6)52Side projectsTechnology
Toolblip is a free collection of 490+ online developer tools that run entirely in your browser. Format JSON, encode Base64, generate QR codes, count words, and more without signup or uploads.
• 490+ free developer tools
• JSON formatting, Base64 encoding, QR generation, and word counting
• Runs locally in your browser with no signup or data uploads
Developers, students, writers, and anyone who needs quick, private utilities for everyday work.
79 people supporting this launch
4.8
6 ratings
Building CloudPloy, a deployment platform for AI tools.
AI video with native sound, paid per clip. Nothing stored.
A calmer Mac menu bar, one click away.
Enterprise Software. Intelligent Automation. Global Impact.
Comments
52Building CloudPloy, a deployment platform for AI tools.
Toolblip is a practical set of fast, private browser tools for everyday developer tasks.
This is a very practical tool.
The no-upload, runs-locally angle is the real differentiator here - pasting JWTs or config with secrets into a random online formatter is how tokens leak. 490 tools in one place also solves the bookmark problem. One suggestion: a way to deep-link a tool with preset input would make these great for sharing in bug reports and docs.
A nice place to have all essential tools together, very useful
Nice work! This looks really handy.
Running 490 tools locally in the browser is a strong privacy promise. It would help to surface which tools use Web APIs versus bundled libraries, plus a short offline-capability indicator so users know what still works after the first load. Are those details available per tool?
The no-upload, in-browser approach is a strong fit for handling JWTs and config snippets. Do you have plans for deep links with preset input or shareable tool states? That would make it easier to reference a formatter in bug reports and docs.
Doing everything in the browser is the right call, and it opens a door you may not have used yet: if the site ships a service worker and a manifest, 490 tools become installable and keep working with the network off. I did the same on my own site and the install prompt costs about thirty lines. That would also answer the "which tools work offline" question someone raised above — with a real service worker the honest answer becomes "all the ones that don't call a web API", and you can grey out the rest when navigator.onLine is false.
With 490+ tools the discoverability of each utility matters as much as the tools themselves — a command palette or fuzzy search across all utilities would save a lot of clicking. Local-only processing is the real differentiator here: formatting a large JSON payload without it ever leaving the browser is a genuine privacy win over the big-name formatters. Curious whether the QR generator supports bulk generation from a CSV, that's a common ask for event teams.
Built something similar with Slaytic Converter. File tools are much harder to keep client-side than text utilities. Are the 490 mostly text/encoding, or is there file conversion too?
Founder at AgentHive
The browser-only approach is a great fit for quick developer utilities—keeping JSON and Base64 processing local is a thoughtful privacy choice.
The JSON/Base64/QR toolkit is exactly what I reach for mid-debug instead of opening three tabs. Clear, fast, and free — curious if you plan to add JWT decode next?
Micro SaaS developer
Toolblip is quite good.
Im very happy i came across this
490 tools in one place is genuinely useful, especially with processing kept in the browser. As the collection grows, discovery could become the bottleneck. A keyboard-first command palette with fuzzy search, recent tools, and favorites would make it much faster to jump between common tasks such as JSON formatting and Base64 conversion.
Look very cool! useful and well thought
dev
this is a very practical tool
The browser-only approach and no-signup workflow are a great fit for quick debugging. Having JSON formatting, Base64, QR generation, and word counting in one lightweight toolkit should be handy when switching between tasks. The no-upload model is especially appealing—are there plans for shareable links or saved presets?
Indie hacker
490+ tools running entirely client-side is the right call — no upload and no signup makes it usable on a locked-down work laptop where you cannot install anything. The hard part with a catalogue this size is discovery: a command palette (⌘K) that fuzzy-searches tool names would beat scrolling category pages. A locally-pinned 'recently used' row would help repeat visits too, since most people return to the same three or four tools.
490+ tools entirely client-side is impressive — curious how you're scoping that. We run into a hard wall with formats that genuinely need a real desktop engine (legacy binary Office files, OCR, some image formats like PSD) — WASM/JS can't losslessly handle those, so we ended up running a server-side path for ~40% of our tools rather than claim pure-browser everywhere. Are those simply out of scope for Toolblip, or is there a server fallback for the ones a browser can't do?