About This Tool
The URL Encoder / Decoder converts text into percent-encoded URL-safe output and decodes percent-encoded strings back into readable text. It is useful for query parameters, path segments, redirect links, form submissions, API debugging, campaign URLs, and copied links that contain spaces, symbols, Unicode text, or reserved characters such as ampersands and hash signs.
Use this tool when a value needs to travel inside a URL without changing the meaning of the URL around it. A search query such as tea & coffee should not let the ampersand split one query value into two parameters. A redirect URL nested inside another query parameter needs its own encoding. A copied log value with %20, %2F, or %3D may need decoding before a human can read what was actually sent.
Common examples include encoding a UTM campaign name with spaces, decoding a long redirect URL during support work, preparing an API query parameter, checking whether a plus sign represents a literal plus or a space, and inspecting percent-encoded Unicode text. Pair it with the URL Parser when you need to separate a full URL into components before changing only one value.
The main benefit is avoiding broken links and accidental double encoding. The tool makes encoding and decoding explicit, shows malformed percent sequences as errors, and keeps sensitive URLs on your device. That matters when links include campaign names, temporary tokens, customer identifiers, draft paths, or API parameters that should not be sent to a third-party URL tool.
ToolPool runs this utility in your browser, so your input stays on your device and is not uploaded to our server.
How To Use This Tool
- 1Paste a URL, parameter value, path segment, or encoded string.
- 2Click Encode URL or Decode URL depending on the task.
- 3Copy the output or clear the workspace.
Benefits
Common Use Cases
- Encoding campaign URLs and query strings.
- Decoding copied redirect URLs during debugging.
- Preparing API parameter values safely.
- Reading percent-encoded text from logs.
- Checking UTM values before publishing links in email, ads, or social posts.
- Decoding a URL component before comparing it with parser or analytics output.
Workflow Tips
URL Encoder / Decoder is designed for quick browser work, but it is still worth reviewing the result before you use it in a live project, client document, public page, or production workflow. Keep an original copy of important source material, compare the output with what you expected, and repeat the task with slightly different settings when quality, formatting, or accuracy matters.
For larger workflows, pair this page with HTML Encoder / Decoder, Base64 Encoder, UTM Builder, UTM Parameter Parser. Moving between related utilities can save time when you need to clean source data, prepare web assets, create supporting IDs, check calculations, or package output for another system. Internal links also make it easier to stay in one private workspace instead of jumping between several single-purpose sites.
The local processing model helps protect sensitive content because ToolPool does not need to receive your files, text, or form values to complete the task. Good privacy habits still matter after the result leaves the page: avoid pasting unnecessary secrets, check downloaded files before sharing them, and clear the workspace when you are finished on a shared computer.