URL Coderen

Overview

Escape text so it can travel inside a URL, a query string or a request body. One rule doesn't fit every job, so there are three modes: Whole URL keeps the address intact, Query value escapes everything that could end a parameter, and Form uses + for spaces. The panes are linked, so you can read back what you're about to send. Your text stays in your browser.

API query stringsEscape a search term or filter so a stray & or # can't end the parameter early.
A URL inside a URLEncode a redirect_uri or return_to address as one value for an OAuth or SSO flow.
Debugging a requestRebuild the exact URL a client should have sent and spot which layer escaped it wrongly.
Form bodiesGet the exact encoding an HTML form sends, with spaces as +.
Sensitive valuesEscape a token or credential for a URL without sending it to anyone's server.

Set

Beveiligingstools 26

Neighbours

01 AES Bestand & Tekst Encryptor 02 Base64 Decoderen 03 Base64 Coderen 04 CSR Generator 05 DER naar PEM Converter 06 Hash Generator

Specification

Command: security.url_encode
Set: Security
Input: text
Output: —
Max. bestand: no limit
Batch: single file

Runtime

Engine: WebCrypto · OpenPGP.js
Threads: single
Isolated: —
WebGPU: —
Memory: —

Transport 0 B

Your file is opened, worked on and saved inside this tab. This tool has no upload step, so your file has nowhere else to go.

Keys

Zoeken: ⌘K
Panels: ⌘1 · ⌘2
Full width: F
All keys: ⌘/

How it works

Type in either pane

Plain text on one side, encoded on the other; edit either and the other updates.

Pick a mode

Whole URL keeps the structure, Query value escapes anything that could end a parameter, and Form turns spaces into +.

Copy the result

Paste it into a URL, a request or a form body.

Frequently asked

What is URL encoding and why is it needed?

Characters that mean something in a URL (spaces, &, ?, #, /) are written as % plus two hex digits, so they're read as data, not syntax. Non-ASCII characters are encoded as their UTF-8 bytes, which is why one accented letter becomes two escapes.

Which characters get encoded?

It depends on the mode. Query value escapes every reserved character, so a space becomes %20 and & becomes %26. Whole URL leaves the scheme, slashes and separators alone and escapes only what would break parsing.

Is this the same as HTML encoding?

No. Percent-encoding (% and two hex digits) is for URLs. HTML encoding uses entities like & and < and is for markup. Mixing them up is a common cause of double escaping.

Can I encode an entire URL?

Yes, with Whole URL mode, which keeps the address working. If the URL goes inside another URL, as a redirect_uri or return_to parameter, use Query value instead so its slashes and colons are escaped too.

Keys

Zoeken: ⌘K
Panels: ⌘1 · ⌘2
Full width: F
All keys: ⌘/