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Toolbit
42 developer tools. Local-first, offline, open source
Toolbit is a local-first workbench with 43 developer utilities (JSON, JWT, regex, diffs, certificates, SQL, YAML) running 100% offline in your browser or desktop app (macOS, Windows, Linux). Why it stands out: • True Privacy: Payloads never leave your device. Zero telemetry. • Smart Paste ('/'): Recognizes any payload and routes directly to the tool. • Keyboard-First: Global ⌘K command palette, tabs, split diffs. • Fast & Open Source: Built with CodeMirror 6 & Tauri v2.
Like many engineers, I found myself daily having to format an unreadable JSON payload, inspect an incoming JWT from Auth0, compare two config files, or debug a regex.
Search Google for "jwt decoder" or "json pretty print", and you’re handed ad-heavy sites tracking your keystrokes or proxying your payloads through cloud servers. Pasting production API keys, customer PII, or internal tokens into random websites always felt like a disaster waiting to happen.
I built Toolbit to be the utility workbench I actually wanted to use:
Local-first and zero payload leaks: All transformations happen in Web Workers on your machine. Payloads are never persisted, never placed in URLs, and never sent across the network.
Keyboard-first and fast: Press / from anywhere and paste. Toolbit recognizes the syntax and routes directly to the tool. Press ⌘K to jump anywhere in milliseconds.
Web and native desktop: Run it in the browser at https://toolbit.app, install it as an offline PWA, or download the native Tauri v2 desktop app for macOS, Windows, and Linux.
Desktop lockdown: The desktop app runs under a locked-down CSP allowing zero network access, and packages a ~24MB on-device model (mxbai-embed-xsmall-v1) so semantic search works completely offline.
Toolbit is 100% free and open-source.
I'd love to hear your thoughts, feedback, and what tools or features you'd like to see next! 🚀
About Toolbit on Product Hunt
“42 developer tools. Local-first, offline, open source”
Toolbit was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #115 on the daily leaderboard. Toolbit is a local-first workbench with 43 developer utilities (JSON, JWT, regex, diffs, certificates, SQL, YAML) running 100% offline in your browser or desktop app (macOS, Windows, Linux). Why it stands out: • True Privacy: Payloads never leave your device. Zero telemetry. • Smart Paste ('/'): Recognizes any payload and routes directly to the tool. • Keyboard-First: Global ⌘K command palette, tabs, split diffs. • Fast & Open Source: Built with CodeMirror 6 & Tauri v2.
On the analytics side, Toolbit competes within Open Source, Privacy, Developer Tools and GitHub — topics that collectively have 643.4k followers on Product Hunt. The dashboard above tracks how Toolbit performed against the three products that launched closest to it on the same day.
Who hunted Toolbit?
Toolbit was hunted by Alwin Augustin. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Alwin Augustin
Hey Product Hunt! 👋
I'm Alwin, the creator of Toolbit.
Why I built Toolbit
Like many engineers, I found myself daily having to format an unreadable JSON payload, inspect an incoming JWT from Auth0, compare two config files, or debug a regex.
Search Google for "jwt decoder" or "json pretty print", and you’re handed ad-heavy sites tracking your keystrokes or proxying your payloads through cloud servers. Pasting production API keys, customer PII, or internal tokens into random websites always felt like a disaster waiting to happen.
I built Toolbit to be the utility workbench I actually wanted to use:
Local-first and zero payload leaks: All transformations happen in Web Workers on your machine. Payloads are never persisted, never placed in URLs, and never sent across the network.
Keyboard-first and fast: Press / from anywhere and paste. Toolbit recognizes the syntax and routes directly to the tool. Press ⌘K to jump anywhere in milliseconds.
Web and native desktop: Run it in the browser at https://toolbit.app, install it as an offline PWA, or download the native Tauri v2 desktop app for macOS, Windows, and Linux.
Desktop lockdown: The desktop app runs under a locked-down CSP allowing zero network access, and packages a ~24MB on-device model (mxbai-embed-xsmall-v1) so semantic search works completely offline.
Toolbit is 100% free and open-source.
I'd love to hear your thoughts, feedback, and what tools or features you'd like to see next! 🚀