URL Encoder / Decoder
Open URL Encoder / Decoder when your URL text needs one clear change. The tool keeps the process short and the encoded or decoded text easy to inspect.
URL Encode & Decode
Encode text for safe use in URLs (spaces to %20 and friends) or decode %-garbled URLs back into readable text. Both directions, instant, in your browser.
How to Use This Tool
1. Select File
2. Processing
3. Download File
What URL Encoder / Decoder checks
URLs only allow a limited character set - spaces, ampersands, question marks, and non-ASCII characters all have reserved meanings or aren't allowed raw. Encoding converts them into percent-sequences ('a b' → 'a%20b', '&' → '%26'); decoding reverses it, turning the %-soup in copied URLs back into human-readable text.
Why developers use it
The classic failure: building a link where a parameter value contains '&' - everything after it silently becomes a different parameter, and the bug hunt begins. Encoding parameter values prevents that class of bug entirely. Decoding matters for the reverse reason: understanding what's actually inside a long tracking URL or a search link someone sent - %E2%82%B9 means nothing to a human until it decodes to ₹.
How the code or data is handled
Paste text, click encode or decode. Component mode encodes everything reserved (right for query values); full-URL mode preserves structural characters like :// and ? (right for whole addresses). Processing runs in your browser - URLs you're debugging never leave your machine.
Developer tasks it helps with
- Encoding query-parameter values containing & or =
- Decoding a garbled URL to see what it contains
- Building mailto: links with subject and body text
- Preparing non-English text for use in URLs
- Debugging redirect chains and tracking parameters
Practical benefits
- Kills the broken-ampersand class of bugs
- Makes tracking URLs readable
- Correct Unicode handling
- Client-side - debug URLs stay on your machine
- Free, instant
Developer options included
- Encode: special characters to %-sequences
- Decode: %-sequences back to readable text
- Component mode for query-parameter values
- Handles Unicode and emoji correctly
- Instant conversion both ways
- Runs client-side in your browser
- Free, no limits
"Encode values, not structures, and when a URL looks double-garbled, decode twice. Those two rules cover nearly every URL-encoding situation."
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