Base64 Encoder

Encode text or files to Base64 / data URLs — URL-safe option included.

100% Browser-Based — code never uploads to our servers. All processing runs locally in your browser.

Paste text

Tip: drag & drop a file onto this card, or use Upload / Import Example below.

Upload File

Tool Options

URL-safe Base64 Output as data URL (files) Live encode

Or encode a file / image / PDF

Results

Results will appear here…

How It Works

Fast developer utilities that run entirely in your browser.

⎘

Paste or upload

Paste code/data or upload a file. Use Import Example to try instantly. Nothing is uploaded to our servers.

→

⚙

Process in browser

All parsing and conversion runs locally in your browser — 100% client-side.

→

⇩

Copy or download

Export results as TXT, JSON, CSV, or JS instantly.

Zero server upload — your data stays on your device.

About Base64 Encoder

Encode text or files to Base64 with UTF-8 and URL-safe options. Upload images/PDF for data URL encoding — free browser tool. Built for developers, QA and SEO workflows with sample data, copy and multi-format export.

FAQs

Is my code uploaded?

No. All developer tools process your content in the browser. FreeConverter servers never receive your input.

Is this free?

Yes. FreeConverter.app online JS/JSON tools are free to use.

Do I need an account?

No account or installation is required.