URL Encoder ↔ Decoder
Encode text into URL-safe percent format and decode percent-encoded strings back to readable text for query params, logs, and API debugging.
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URL Encoder ↔ Decoder
URL encoding is a safe way to pass text through links, query parameters, and API requests without breaking characters like spaces, ampersands, question marks, or non-ASCII letters. This URL Encoder ↔ Decoder helps you switch quickly between readable text and percent-encoded output used in real web traffic. You can use it while debugging redirects, checking tracking parameters, preparing webhook payloads, or cleaning values copied from browser logs.
Choose Encode when you start with plain text and need a URL-safe string. Choose Decode when you have encoded content like %20, %2F, %3D, or %26 and want to inspect the original value. The tool also includes Treat + as space for decode mode, which is useful for query strings produced by form submissions.
Because conversion happens instantly and in both directions, you can validate whether a string is correctly encoded before sending it to production systems. This reduces common mistakes such as double-encoding, invalid percent sequences, or accidentally changing the semantic meaning of a parameter value.
In day-to-day work, teams often copy values between browser address bars, analytics dashboards, server logs, ticket systems, and API clients. During this process, encoded data can become hard to read, and readable data can become unsafe for transport in URLs. With this tool, you can verify content quickly, keep the exact text intent, and avoid subtle integration bugs.
It is practical for backend, frontend, QA, analytics, and support workflows where URL data must be precise and readable. Whether you are validating campaign links, reproducing a customer issue, checking webhook callbacks, or preparing request parameters for scripts and tests, a fast Encode/Decode cycle helps you confirm correctness before the data reaches live users.
live_help Frequently Asked Questions (FAQ)
When should I use Encode and when Decode?
Use Encode when you have readable text and need to place it safely in a URL or query parameter. Use Decode when you receive %-encoded data and need to inspect the original value in logs, API responses, or support tickets.
Why does plus (+) sometimes stay as + and sometimes become a space?
In many query-string contexts, + represents a space. In other contexts it is a literal plus sign. Enable Treat + as space only when your source data follows form-style query encoding. Leave it off when + must remain a real character.
Why do I get an input error while decoding?
An error appears when the encoded string has invalid percent sequences, such as incomplete % markers or non-hex characters after %. This validation helps detect broken URLs early instead of silently producing incorrect output.
Can I decode full query strings like name=Jan+Kowalski&city=Krak%C3%B3w?
Yes. Paste the full string into Content, switch to Decode, and optionally enable Treat + as space. The result helps you verify both structure and values before forwarding data to another system.