Tiny, fast, private tools.
No accounts. No uploads.
26 hand-picked utilities that run entirely in your browser. Generate QR codes, resize images, create secure passwords, format JSON, focus with Pomodoro — without a single byte leaving your device.
Featured tools
Most loved by our usersBeautiful QR codes — 9 ready-to-download designs.
Cryptographically random passwords, generated on your device.
Scale & compress images locally with HTML5 Canvas.
Validate & prettify JSON with precise error reporting.
25-minute focus blocks with a soft chime — no signup.
Length, weight, temperature, volume — metric ↔ imperial.
Everything runs in your browser. No uploads, no accounts, no telemetry. Use it on a flight if you want.
Each tool lazy-loads only the code it needs. No spinners, no waiting for a server response.
No premium tier, no popups, no signup wall. The whole catalog, forever.
All 26 tools
Image & Design
5 toolsScale & compress images locally with HTML5 Canvas.
Beautiful QR codes — 9 ready-to-download designs.
Rasterize SVG to PNG or JPG at any resolution.
HEX ↔ RGB ↔ HSL with auto-palette suggestions.
Design CSS shadows visually, copy production-ready code.
Developer & Data
5 toolsValidate & prettify JSON with precise error reporting.
Turn CSV into clean JSON arrays — locally and instantly.
Encode images to Base64 data URIs in one drop.
Decode and inspect JWT headers & payloads locally.
encodeURIComponent & decodeURIComponent, beautifully.
Text & Docs
4 toolsMath & Everyday
4 toolsGames & Fun
3 toolsGenerators & Security
2 toolsTime & Productivity
2 toolsEmoji & Unicode
1 toolsFrequently asked questions
Is Toolzy really free?+
Yes — every tool is free with no signup, no paywall, and no usage limits. There's no premium tier.
How is Toolzy private?+
Every tool runs entirely inside your browser. No file is uploaded, no input is logged, and no account is required. You can disconnect from the internet after the page loads and most tools still work.
Do I need to install anything?+
No. Toolzy works on any modern browser — desktop or mobile. Add it to your home screen and it works like an app.
Can I use Toolzy commercially?+
Yes. Generated QR codes, passwords, palettes, and exports are yours to use however you like — personal or commercial.
Why is Toolzy faster than other tool sites?+
Two reasons: there's no server round-trip (everything runs locally), and the page bundle is tiny (each tool lazy-loads only when you open it).