100% Free No Upload Bulk Conversion

Bulk HDR to AI Converter — Free, No Upload

Convert multiple HDR files to AI instantly — all in your browser. No file limits, no watermarks, and completely private.

HDR AI  ·  ZIP
Bulk HDR → AI Converter
Select files, convert, download ZIP — all locally
AI format is not currently supported in the tool. We are working on adding support soon - it will be available as soon as possible.
HDR Support is coming soon — we are working on it.

Drop HDR files here or click to browse

Supports batch selection — convert hundreds of files

HDR → AI ZIP
0 files
Converting 0 / 0
✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert HDR to AI?

Want faster load times and lower bandwidth costs? Switch from HDR to AI. The difference is dramatic: lossless vs vector, 32-bit float vs unlimited. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches.

Technical comparison: HDR vs AI

PropertyHDRAI
Full nameHigh Dynamic Range ImageAdobe Illustrator
Compression Lossless Vector (infinite)
Color depth32-bit floatunlimited
Transparency No Yes
Web support No No
Developed byRadiance / Greg Ward (1989)Adobe (1987)
Best for High dynamic range photography Vector graphics and illustrations

How to use — 3 simple steps

1
Select your HDR files
Drag & drop or click to choose multiple HDR images. No file size restrictions.
2
Start the conversion
Click "Convert to :to" — your files are processed locally using WebAssembly. No upload, no waiting.
3
Download ZIP archive
All converted AI files are bundled into a single ZIP. One click, everything saved.

Popular use cases for HDR → AI

Uploading HDR photos to social media after converting to AI

Saving hard drive space by converting a batch of HDR images to AI

Emailing high-quality images without attachment limits (use AI)

Creating a backup copy of your HDR library in the more compatible AI format

💡 Pro tips

  • Use the ZIP download to get all converted files in a single click
  • All processing is private — files are never uploaded to any server

Frequently Asked Questions

Typically 60-90% smaller for lossy AI, or 20-40% for lossless AI compared to uncompressed HDR.
AI is supported by all modern browsers (Chrome, Firefox, Safari, Edge) if web_support is true. Check caniuse.com otherwise.
Only the first frame of animated GIF will be converted to AI. For animation, use GIF or WebP.
AI supports transparency? If yes, preserved. If not, transparent areas become white/black. Use PNG for transparency.
Application offline!