URL Decode JSON
Decode a URL-encoded JSON string and, when it is valid JSON, show it neatly formatted. Free, private, and works entirely in your browser.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Processed locally in your browser. Your text never leaves this tab.
How to Use URL Decode JSON
- Paste the encoded text. Drop in a percent-encoded JSON string.
- Decode. Select the button to URL-decode it.
- Read the JSON. If the result is valid JSON it is shown formatted, otherwise the decoded text is shown.
- Copy the result. Use the copy button to grab the output.
Frequently Asked Questions
What does URL-decoding do?
It converts percent-encoded sequences, such as a percent 7B, back into the characters they stand for, like a brace.
Why also format the JSON?
Decoded JSON is often easier to read when it is indented, so the tool formats it when the result is valid JSON.
What if it is not valid JSON?
The tool still shows the decoded text, so it is useful for any URL-encoded value, not only JSON.
Is my data sent anywhere?
No. Everything runs in your browser, so the JSON you paste is never uploaded.
Is it free?
Yes. Every tool here is free to use with no sign up.
Related Tools
URL Encode JSON →
URL-encode JSON so it can be safely placed in a query string, minifying valid…
Analyze JSON Online and Validate JSON Structure →
Analyze JSON Online Validate & Analyze JSON Structure with detailed statistics including depth, key…
Capture JSON Screenshot Generator →
Capture JSON Screenshot and Render pretty-printed JSON as a syntax-highlighted PNG screenshot - dark…
Censor JSON And Redactor →
Censor JSON and Redact passwords, tokens, and PII in JSON with asterisks, [REDACTED], or…
Base64 to JSON Decoder →
Decode Base64 to pretty-printed JSON - URL-safe variant, sort keys, indent 2/4/tab/minified. Free, client-side,…
Convert JSON to Base64 →
Encode JSON to Base64 or decode back. Standard / URL-safe / no padding. Pretty/minified/sorted.…
Convert JSON to Bson →
Real BSON encoding per bsonspec.org - int32/int64/double types, embedded docs, arrays. Bidirectional. Free, offline,…
Convert JSON to Image →
Render JSON as a syntax-highlighted PNG/JPEG with 6 themes, custom fonts, line numbers. Free,…
Convert JSON to Properties →
Convert JSON to Java .properties with real escaping (RFC-correct keys/values). Bidirectional. Spring-style arrays. Free,…
Convert JSON to Text →
Convert JSON to plain text - pretty, dot-path, indented tree, YAML-like, or numbered outline.…
Convert JSON to TSV →
Convert JSON to TSV with real tab/newline escaping. Nested flattening, header union, bidirectional. Free,…
Convert TSV to JSON →
Convert TSV to JSON (and back) with type inference, headers toggle, empty-cell strategy, pretty-print.…