Introduction
Image Tools is a set of image utilities that run entirely in your browser: compression, format conversion, AI upscaling, AI background removal, click-to-cut, and crop/rotate. No server, no uploads, no account.
The five tools
| Tool | Path | What it does |
|---|---|---|
| Compress | / |
Compression and format conversion — JPEG / PNG / WebP / AVIF / JPEG XL, in batches. |
| Upscale | /upscale/ |
4× upscaling with Real-ESRGAN, rebuilding detail rather than interpolating pixels. |
| Remove background | /cutout/ |
MODNet / BiRefNet finds the subject automatically and drops the background, producing a transparent PNG or a solid backdrop. |
| Click to cut | /segment/ |
MobileSAM, driven by hand: click the subject to select it, add points to refine, Alt-click to take parts back out. |
| Crop & rotate | /edit/ |
Cropping, free rotation, auto-straightening, flipping, and 3×3 grid slicing. |
Why "in your browser"
Most online image tools process your files on a server. Your photos leave your device, sit on someone else's machine, and come back — no matter how sincerely they promise to delete them afterwards, the files have already left the room.
These tools do the opposite:
- Your files never leave your device. Everything runs in your browser. There is no upload step.
- No account, no quota. No sign-up, and no "5 free images per day" limit.
- Works offline. Once the page and models have loaded, you can pull the network cable and keep working.
The trade-off is a first-run download for the model weights (4.9 MB for upscaling, from 24 MB for background removal) and processing speed that depends on your own hardware. What you get back is privacy and unlimited use — a good trade for private photos, ID pictures, or screenshots with sensitive information in them.
Next steps
- Usage — how to use each tool and which settings are worth touching.
- In-browser inference — how WebGPU vs WASM is chosen, and why the first run is slow.
- Deploying — hosting this site under your own domain.