90 browser tools. Zero uploads, 100% private.

ToolKnit is a suite of 90 free browser-based tools covering PDF,

image, video, audio, text, calculators, timers, creative tools,

AI experiences, and self-tests.

Every tool runs 100% locally in your browser via WebAssembly.

Your files never leave your device — no server uploads, no data

retention, no privacy concerns.

What you get:

• PDF tools: compress, merge, convert, extract images

• Image tools: 19 formats, background remover, crop, resize

• Video tools: compress, GIF maker, screenshot, audio extract

• Audio tools: format conversion, metronome, BPM, noise gen

• Text tools: fancy text, Morse code, JSON formatter, diff

• Creative: whiteboard, QR codes, pixel art, signature maker

• AI: Tarot, Text Adventure, Trajectory, Ex-Partner Chat

• Self-tests: typing speed, reaction time, CPS, aim trainer

Why ToolKnit?

→ No signup required — pick a tool and go

→ Works offline as PWA or native Windows desktop app

→ 115+ days stable uptime

→ 141 articles, guides & changelogs

→ Built by a solo developer