Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to text.
Open Base64 Encoder / DecoderEncode and decode Base64, URL, and entity-based values safely for transport, debugging, and integration work.
40 tools available in this section.
Encode plain text to Base64 or decode Base64 back to text.
Open Base64 Encoder / DecoderEncode text for safe use in URLs.
Open URL EncoderDecode URL-encoded strings back to readable text.
Open URL DecoderEncode special HTML characters into entities.
Open HTML EncoderDecode HTML entities back to normal characters.
Open HTML DecoderEncode query values for safe URL usage.
Open Query String EncoderDecode URL query values back to plain text.
Open Query String DecoderEncode URI components quickly and safely.
Open URI EncoderDecode encoded URI components into text.
Open URI DecoderEncode special HTML characters into entities.
Open HTML Entity EncoderDecode HTML entities back to normal characters.
Open HTML Entity DecoderEncode plain text to Base64 quickly.
Open Base64 EncoderDecode Base64 strings into plain text.
Open Base64 DecoderEncode text to Base64 and decode it back instantly.
Open Text Base64 EncoderConvert plain text and Base64 values in both directions.
Open Base64 ConverterOnline Base64 encoding and decoding utility for quick conversion.
Open Online Base64 Encoder DecoderEncode image files into Base64 data URLs.
Open Image Base64 EncoderDecode Base64 image strings back to image files.
Open Image Base64 DecoderEncode and decode image Base64 in one tool.
Open Image Base64 ConverterDecode JWT header and payload instantly.
Open JWT DecoderCreate unsigned JWT tokens from JSON payload.
Open JWT EncoderParse URL components like host, path, and query.
Open URL ParserBuild query strings from key-value input.
Open Query String BuilderEncode file-like content into Base64 text.
Open Base64 File EncoderDecode Base64 content back into text.
Open Base64 File DecoderClean messy slug text into URL-safe format.
Open URL Slug CleanerConvert text into unicode escape sequences.
Open Unicode Escape ConverterEncode or decode HTML entities quickly.
Open HTML Entity ConverterDecode JWT header and payload sections in one click.
Open JWT Token DecoderCreate unsigned JWT tokens from JSON payload quickly.
Open JWT Token EncoderParse API endpoint URLs into host, path, and query parts.
Open API URL ParserEncode plain text content into Base64 safely.
Open Base64 Text EncoderDecode Base64 strings back into readable plain text.
Open Base64 Text DecoderConvert normal text into unicode escape sequences.
Open Unicode Text EncoderEncode and decode HTML entities from one input area.
Open HTML Entities Encoder DecoderDecode JWT payload values instantly in-browser.
Open JWT Payload DecoderEncode text into unicode escape sequences online.
Open Unicode Escape Encoder OnlineEncode raw strings into Base64 values quickly.
Open Base64 String EncoderDecode Base64 strings back to readable text.
Open Base64 String DecoderExtract URL query parameters into JSON instantly.
Open URL Query ExtractorEncoding utilities are practical when moving data between APIs, URLs, browser contexts, and systems.
Pair encoders and decoders on related pages to verify output and troubleshoot malformed values.
These nearby tools are often used together with this category.
Convert images between PNG, JPG, and WEBP.
Check JWT exp claim and expiry status.
Validate JSON syntax quickly in your browser.
Extract URL query parameters as JSON.
Parse raw HTTP headers into structured JSON.
Parse API endpoint URL parts and query data.
Build encoded URL query strings from key-value lines.
Convert free text into clean URL slugs.