Unicode Converter

How to unicode converter

1. Add your input — Paste or type into the box above. There is no length limit, because the work happens on your own machine rather than in a request to a server.
2. Adjust the options — Where the tool offers settings, change them and the output updates immediately — there is nothing to submit.
3. Copy the result — Use the copy button, or select the output and copy it by hand. Nothing is stored once you leave the page.

What this tool does

To use the unicode converter, add your file to the tool above and the result is ready to download in a moment. Everything runs in your browser, so nothing is uploaded. The tool is free, needs no account, applies no watermark, and has no daily limit.

What this tool does

A developer utility should be instant, correct, and unremarkable. This one runs in the browser using the platform's own primitives rather than a hand-rolled implementation, which means the results match what your language's standard library will produce — and there is no round trip to wait for.

Why nothing is uploaded

This tool runs entirely on your own device. Your file is read into memory by JavaScript on this page, processed there, and handed back to you as a download. It is never transmitted to us, which means there is nothing on our side to store, log, leak or forget to delete.

You can verify that yourself: load this page, disconnect from the internet, and the tool still works. That is a different claim from a privacy policy promising prompt deletion, and it is the reason this site exists.

Correctness and what it is not for

This runs on the platform's own primitives rather than a hand-rolled implementation, so the output matches what your language's standard library produces byte for byte. That is the property you actually want from a tool like this: something you can check a value against, with confidence that a mismatch means your code is wrong rather than the tool.

A word on hashing in particular. MD5 and SHA-1 are broken for any security purpose — practical collisions exist for both — and are included here only as checksums for verifying that a file downloaded intact. Neither should be anywhere near a password. For passwords the answer is a deliberately slow algorithm such as bcrypt, scrypt or Argon2, which are designed to be expensive to compute precisely so that guessing at scale is impractical.

Encoding is not encryption either. Base64 is a transport format that anyone can reverse in a second; a JWT payload is readable by anyone holding the token. Neither hides anything.

What it costs

Nothing. There is no account, no email capture, no free-trial countdown, no watermark on the output and no daily limit. The site is funded by advertising, which sits below the tool and never between an input and its result.

Works offline

Because everything runs locally, this tool keeps working once the page has loaded even if your connection drops. That is worth knowing on a train, on conference WiFi, or anywhere the network is unreliable — and it is the clearest demonstration that your file really is not going anywhere.