Percent-encode or decode URLs and query string components. Tentaco URL Encoder / Decoder: review input and get an instant result — free, no sign-up.
Full tool — runs in your browser. No sign-up required.
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Safely encode special characters for use in URLs, or decode an encoded URL back to a readable string. Supports both full-URL and component encoding (encodeURI vs encodeURIComponent).
Paste or enter your input into Tentaco URL Encoder / Decoder. Standard processing runs locally in your browser — contents are not sent to Tentaco servers for that path.
The primary button opens the matching studio mode so you can start without an account. People often search for: url encode, url decode, percent encoding.
Open URL Encoder / Decoder via the studio button (direct mode).
Paste or type your input.
Adjust options and review the preview or output.
Copy or save the result and re-run if needed.
Transfer to Tentaco: No for the standard mode. Processing: local in the browser. Permanent storage: only if you copy or save the result yourself.
LocalThis tool processes data locally in your browser. Tentaco does not receive your file contents for this mode.
No. URL Encoder / Decoder processes the standard mode locally in your browser; Tentaco does not receive your input for that path.
Yes. Copy the output from URL Encoder / Decoder or download it when the tool offers a file.
URL Encoder / Decoder follows the formats named in the UI and description. Unlisted variants are not guaranteed.
After the first load, URL Encoder / Decoder often keeps working offline. Online dependencies are labeled.
Base64 encode & decode — free
Encode text to Base64 or decode Base64 back to plain text. Tentaco Base64 Encoder / Decoder: review input and get an instant result — free, no sign-up.
HTML entities encoder online — free
Escape or unescape HTML entities like & and <. Tentaco HTML Entity Encoder / Decoder: review input and get an instant result — free, no sign-up.
Query String JSON — parse URL params
Convert URL query strings to JSON and back. Tentaco Query String ↔ JSON: review input and get an instant result — free, no sign-up.
Slug Generator — URL slug from title
Turn any title into a clean, SEO-friendly URL slug. Tentaco Slug Generator: review input and get an instant result — free, no sign-up.
URL Parser online — free in your browser
Break a URL into protocol, host, path, query and hash. Tentaco URL Parser: review input and get an instant result — free, no sign-up.
JWT decoder online — inspect tokens free
Decode and inspect JSON Web Tokens in your browser. Header, payload and signature — no upload.
Format JSON online — free validator & pretty print
Beautify, minify and validate JSON in your browser. Syntax errors with line hints — copy or download instantly.
Timestamp Converter — Unix epoch to date
Convert between Unix timestamps and human-readable dates. Tentaco Unix Timestamp Converter: review input and get an instant result — free, no sign-up.