Percent-encode text or URLs so they can travel safely inside a URL string.
Url Encoder Online turns plain text and web addresses into percent‑encoded strings that work safely inside a URL. Whether you’re building a query string, testing an API, or passing form data, this encode url online tool handles the tricky characters for you so you never break a link. Just paste your input, choose an encoding mode, and the encoded result appears right away. You may do it all without installing any programs, making it a reliable approach to ensure that your API calls and links are error-free.
Text area with live line numbers for easy editing
File upload button that accepts .txt files
URL fetch button to load content directly from any web address
Clipboard paste button for instant text import
Clear button to reset the input field in one click
Three encoding modes: encodeURIComponent (safe), encodeURI (loose), and Form URL‑encode (spaces become +)
Manual encode trigger plus automatic conversion on every keystroke
Download button to save the encoded result as a .url.txt file
One‑click copy button next to the output panel
Word wrap toggle for easier reading of long encoded strings
Font size increase/decrease buttons for comfortable viewing
Real‑time line/column counter and file size indicator
type, paste, upload a .txt file, or fetch content from a URL.
from the dropdown (safe, loose, or form‑style).
to convert your input into a percent‑encoded string.
to your clipboard or download it as a text file.
“How do I encode a URL for safe transmission?” — just paste it, pick the right mode, and hit Encode. The tool does the rest in a split second.
Your input gets encoded immediately with zero server delay. Everything runs locally in your browser, so there is no waiting.
Load from a text file, paste from your clipboard, fetch a live webpage, or use the sample data — you decide how to start.
Choose between standard component encoding, loose URI encoding, or form‑style encoding (where spaces become +). One tool covers all common use cases.
No data is sent to any server. Your text stays on your device at all times, making it completely safe for sensitive query strings.
Copy the encoded result with one click, or paste directly from your clipboard into the input area. It removes friction from your workflow.
Download the encoded output as a plain text file whenever you need to save it for later use in APIs, configs, or debugging.
Use encodeURIComponent for any value you place after a ? in a URL – it’s the safest all‑around option.
The Form mode matches how browsers send form data, so choose it when you’re replicating a standard web form submission.
Drag and drop a .txt file directly onto the input area to load it instantly without clicking the file button.
The tool gives you three encoding methods, and each one fits a different scenario. encodeURIComponent is the safest choice for query parameters – it escapes every character except letters, digits, and a few safe symbols. encodeURI leaves slashes, colons, and question marks untouched, which makes it better for full‑URL encoding. The Form mode turns spaces into + signs, exactly how browsers submit HTML forms. You may prevent double-encoding and preserve the integrity of your data by being aware of the mode to employ.
It converts special characters in a text string into percent‑encoded codes so the string can be safely used inside a URL.
Browsers and servers use percent encoding to interpret non‑ASCII or reserved characters without misreading them as URL syntax.
It replaces spaces with + signs instead of %20, following the standard used by HTML forms when submitting data.
Yes, you can upload a .txt file and the tool will read its content and encode the entire text.
Absolutely. Everything runs locally in your browser — no input is ever sent to a server, so your data stays private.
Toolota is your all-in-one online tools platform. Fast, simple, and free utilities designed to make everyday digital tasks easier and smarter.
