Humble Simple Tools
Local-only text utilities in your browser for Base64, URL, JSON, HTML entity, Unicode, and JWT. Private by default.
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Local-only processing
All conversions run in your browser. Input data is not sent to any server.
All tools
- Base64 - Decode: Decode Base64/Base64URL input (whitespace ignored) back to text or a downloadable binary file.
- Base64 - Encode: Encode text or files into Base64/Base64URL with optional padding control for tokens and binary payloads.
- CSV - Decode: Convert JSON array data into CSV using the selected delimiter.
- CSV - Encode: Convert CSV rows into JSON arrays with delimiter and header handling options.
- Hash - Generate: Generate one-way hashes (MD5/SHA-*) for text or files.
- Hex - Decode: Decode hexadecimal input (whitespace and 0x ignored) back to text or a downloadable file.
- Hex - Encode: Encode text or files into hexadecimal bytes for debugging and binary inspection.
- HMAC - Generate: Generate HMAC signatures (HMAC-SHA*) for text or files.
- HTML Entity - Decode: Decode supported HTML entities back into their original characters.
- HTML Entity - Encode: Encode text into common HTML entities to keep markup safe in HTML contexts.
- JSON Utilities - Beautify: Pretty-print JSON with configurable indentation and optional key sorting.
- JSON Utilities - Escape: Escape text for safe JSON string literals, with optional non-ASCII escaping.
- JSON Utilities - Minify: Minify JSON by removing whitespace while preserving the original data.
- JSON Utilities - Unescape: Unescape JSON string sequences back into readable text and surface invalid escapes.
- JWT Decode - Decode: Decode JWT header and payload from Base64URL and pretty-print the JSON for inspection.
- Timestamp - Convert: Convert between Unix timestamps, ISO8601, and localized time in one view.
- Unicode - Escape: Escape text into \uXXXX or \xXX sequences, with options for ASCII retention.
- Unicode - Unescape: Unescape \uXXXX or \xXX sequences back into Unicode characters.
- URL - Decode: Decode URL components and optionally treat '+' as space when working with querystring encoding.
- URL - Encode: Encode URL components for querystrings or paths, controlling how spaces and reserved characters are handled.
- UUID - Generate: Generate UUID v4 or v7 with count and format options.