So funktioniert es
JWT einfügen, Header und Payload JSON lokal dekodieren.
JWT-Header und Payload lokal prüfen.
JWT string
JWT einfügen, Header und Payload JSON lokal dekodieren.
Conversions run in your tab with JavaScript — no desktop app required.
Files stay on your device during processing. We do not receive your uploads.
Heavy codecs and AI models run locally via Web Workers and WASM (FFmpeg.wasm, Transformers.js).
JWT einfügen, Header und Payload JSON lokal dekodieren.
Keine Signatur/JWKS-Prüfung — unverifizierte Tokens nicht vertrauen. Verarbeitung zu 100 % offline im Browser — Dateien verlassen Ihr Gerät nie.
Yes. This tool is free convert online with no signup. Processing stays in your browser — no uploads.
You control quality settings. Choose higher quality for no quality loss when converting online.
Every conversion runs inside your browser tab using JavaScript and Web Workers. There is no background server queue and no account is required for core tools.
Your files are never uploaded to FreeConvertKit for processing. Originals, previews, and exports stay on your device unless you choose to download or share them yourself.
When codecs or AI models are needed, WebAssembly modules such as FFmpeg.wasm and Transformers.js execute locally — giving you desktop-class power with absolute file privacy.
HEX, RGB und HSL mit Live-Vorschau umrechnen.
SHA-256 und weitere Hashes aus Text erzeugen.
Text oder Dateien ohne Upload zu Base64 kodieren.
JSON im Browser formatieren, minifizieren und mit Syntaxhervorhebung validieren.