Developer subcategory
Encoders & Decoders
Work with encoded text, URLs, JSON payloads, UTF-8 content, and tokens using tools designed for quick inspection and transformation.
6 free toolsNo signup required
Encoders & Decoders
Encode, decode, and inspect developer-friendly text and token formats.
JSON Decode OnlineDecode a JSON-escaped string back to plain text. Unescapes quotes, backslashes, newlines, and Unicode \uXXXX sequences. Works with or without surrounding quotes.JSON Encode OnlineEscape a string for use as a JSON value. Handles quotes, backslashes, control characters, and optionally Unicode and forward slashes. Copy the ready-to-paste JSON string.JSON URL DecodeURL-decode JSON from query strings or form bodies. Optionally treats + as space (form mode) and pretty-prints the resulting JSON.JSON URL EncodeURL-encode JSON for use in query strings or POST bodies. Supports encodeURIComponent, encodeURI, and form (x-www-form-urlencoded) modes. Optional minify-before-encode.JWT DecoderDecode and inspect JSON Web Tokens (JWT) without validation.UTF8 DecodeDecode UTF-8 byte sequences from hex, decimal, percent-encoded, or escaped input into readable text.
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