JWT DecoderDecode a JWT, see when it expires and check its signature with a key you paste. Runs in your browser: the token never leaves your device. No tracking.This page needs JavaScript. It runs entirely in your browser: nothing you paste is sent anywhere.

Documents

Markdown to Teams, Word & Outlook: Paste Markdown from an AI chat, copy it as rich text for Teams, Word or Outlook.
Rich text to Markdown: Paste formatted text from Teams, Word or Google Docs, get clean Markdown.

Developer

JSON Formatter & Validator: Format, validate and minify JSON, or convert it to YAML or TOML.
YAML Formatter & Validator: Format and validate YAML, keep comments, or convert it to JSON or TOML.
TOML Formatter & Validator: Format and validate TOML, or convert it to JSON or YAML.
XML Formatter & Validator: Format, validate and minify XML; errors point to the line and column.
SQL Formatter: Format queries for PostgreSQL, MySQL, SQL Server, SQLite, Oracle and more.
JWT Decoder: Decode a JWT, see when it expires, check the signature. The token stays here.
Base64 Encoder & Decoder: Encode text to Base64 or base64url and decode it back.