URL Encoder & Decoder
Encode and decode URLs.
encodeURIComponent() — codifica todos los caracteres especiales
How do you URL-encode and decode text online?
Docuboxer's URL encoder converts text into percent-encoded form — spaces, accents and symbols replaced by their %XX hexadecimal equivalents — and decodes encoded strings back into readable text, instantly and entirely in your browser. URL encoding exists because URLs can only safely carry a limited character set: a space, an ampersand or a question mark inside a parameter value will be misread as URL structure unless it's escaped. Paste a value to encode before building a link, or paste a garbled-looking URL from a log, an email or an API response to see what it actually says. The result appears as you type, with a copy button ready. Because everything you paste — often full URLs containing tokens, emails or tracking parameters — is processed only in your device's memory, nothing reaches any server, and the tool works offline once the page has loaded. Free, no signup.
How to use URL Encoder & Decoder
- Choose whether to encode a text or URL to make it address-bar safe, or decode an already encoded string.
- Enter the text, URL or query parameter into the tool's input field.
- See the encoded or decoded result instantly and copy it with the dedicated button, ready to use wherever you need it.
Common use cases
Build URLs with safe query parameters
Correctly encode parameter values containing spaces, special characters or symbols so servers and browsers interpret your URLs without errors.
Debug URLs from forms and APIs
Decode encoded URLs found in logs, API responses or form submissions to read their real content and verify data is transmitted correctly.
Prepare links for emails and campaigns
Encode destination URLs and UTM parameters before embedding them in email campaigns and redirects, so no character breaks the link.
Read tracking and redirect URLs
Marketing and redirect URLs often wrap the real destination in layers of encoding. Decode them to see exactly where a link actually points.
Encode sensitive parameters privately
URLs frequently embed tokens and personal data. Here the encoding and decoding run only in your browser — nothing is sent to any server.
Frequently asked questions
How do I URL-encode a string?
Paste the text into the tool in encode mode and the percent-encoded version appears instantly, ready to copy. Free, no signup, and processed entirely in your browser.
Which characters get encoded in a URL?
Spaces, accented characters, symbols like & = + #, and any character outside the safe ASCII set. Each one is replaced by its %XX equivalent in hexadecimal notation.
What does %20 mean in a URL?
It's the percent-encoded form of a space: 20 is the hexadecimal code of the space character. Every %XX sequence in a URL follows the same pattern — a percent sign followed by the character's hex value.
Can I decode a URL with multiple levels of encoding?
Yes — run the decode step repeatedly. Each pass removes one layer of encoding until the fully readable original emerges, which is common with redirect and tracking URLs.
What's the difference between URL encoding and Base64?
URL encoding escapes individual unsafe characters so text can live inside a URL; Base64 re-encodes entire binary data as ASCII text. For query parameter values you want URL encoding — and if you're working with Base64, Docuboxer has a dedicated tool for it.
Is what I paste sent to a server?
No. Encoding and decoding run entirely in your browser's memory — no server, no logs, no retention — and the tool keeps working offline once the page has loaded.