Base64 to File
Decode any Base64 string — image, PDF, document — and download it as a real file.
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About the Base64 to File
Base64 to File takes a data:...base64, string or a raw Base64 blob, decodes it in your browser and presents a download button for the resulting file — detected MIME and all.
How to use
- Paste the Base64 content (with or without the
data:prefix). - Optionally set a filename.
- Click Decode & download.
Benefits & key features
- Supports any file type — images, PDFs, Office documents, JSON.
- Automatically picks a sensible extension from the MIME type.
- 100% offline; safe for decoded binaries containing proprietary data.
- Pairs with Image to Base64 for full round-tripping.
Pro tip
If the download is garbage when opened, you likely pasted an incomplete Base64 string. Verify the final characters — Base64 ends in zero, one or two = signs.
Why choose toolsfy for Developer tools?
Developers already have editors, linters and one-off scripts that do half of what these utilities do — but nobody wants to paste a JWT into a random cloud decoder, or send an AES-encrypted sample through someone else's server. toolsfy's dev utilities are deliberately tiny, zero-dependency and 100% client-side so they can become part of a muscle-memory workflow you actually trust with production data.
Common use cases
- Full-stack developers formatting a gnarly production JSON payload to figure out which field the front-end is mis-parsing.
- DevOps engineers minifying a snippet of JavaScript or CSS inline during a code review, without reaching for a Node build step.
- Security engineers hashing or Base64-encoding a small test vector for a quick regression check on an authentication flow.
Frequently asked questions
Do these tools send my code or payload to a server?
No. Everything runs inside this tab. Even large minification jobs stay local — you can run the tool with DevTools → Network tab open to confirm.
Is the output deterministic and reproducible?
Yes. The same input always produces the same output, because the libraries are versioned (the exact CDN versions are pinned in common.js).
Can I integrate the underlying logic into my own project?
The tools rely on well-known open-source libraries (js-yaml, pdf-lib, clipboard API). Swap toolsfy for the npm packages of the same libraries once you are ready to automate.