People googling Base64 viewer, Base64 reader, paste Base64 preview, and download Base64 decoded file are not looking for another Decode button. They want to see the payload, enlarge it when the thumbnail is useless, then download with the right extension—without uploading secrets.
The product gap
| Need | Typical site | Our Base64 reader |
|---|---|---|
| Live paste preview | Click Decode | Updates as you paste |
| Read a small QR / UI screenshot | Tiny box | Enlarge lightbox + zoom |
| Multi-format | Image-only tools | Image, PDF, audio/video, text, hex |
| Download reliability | Wrong MIME / .bin |
Sniffed type + base64-decoded.ext |
| Privacy (EU/US) | Upload SaaS | 100% browser |
How to enlarge and download
- Open the Base64 viewer / reader.
- Paste a Base64 string or
data:image/…;base64,…URI. - Use Enlarge preview (or click the image) for fullscreen inspection; zoom with + / −.
- Open in new tab if you prefer the browser’s native PDF/image viewer.
- Download decoded file — or Copy data URI / Copy text output.
Keywords this page targets
Base64 viewer online, Base64 reader, Base64 preview enlarge, Base64 to image preview, Base64 PDF viewer, decode Base64 download file, data URI preview, private Base64 decoder (no upload).
Related tools
- Base64 to Image — when you know it is a picture
- Data URL to image
- Verify Base64 — LLM / ChatGPT checks
- Strip EXIF — after downloading a photo
Paste once on the Base64 reader—preview, enlarge, download.
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