Convert TIFF to JPG without uploading anything
Web browsers can’t display TIFF files, and TIFFs are large and awkward to share. This tool decodes baseline TIFF/TIF images right in your browser and re-encodes them as compact JPG files that open everywhere — with nothing ever uploaded.
How it works
Because browsers can’t decode TIFF natively, the tool ships a self-contained baseline-TIFF decoder. It reads the TIFF header to detect byte order (little- or big-endian), parses the image strips, and supports uncompressed, PackBits and LZW compression in 8-bit grayscale or RGB. The decoded pixels are drawn onto an off-screen canvas, then the canvas is re-encoded with the JPEG codec at the quality level you set. Every step runs locally.
What the quality slider controls
JPEG compression is lossy: it discards fine detail that is hard for the human eye to detect. The quality slider controls how aggressively it discards:
- High quality (0.9–1.0): File is much smaller than the TIFF but preserves nearly all visible detail. Good for archiving or sending to a client.
- Medium quality (0.7–0.85): A practical sweet spot. Typical scan of 10–20 MB becomes 500 KB–2 MB with little perceptible loss. Suitable for most web and email uses.
- Lower quality (below 0.6): Smallest file sizes, but block-like compression artefacts may appear in areas of fine detail or sharp edges. Acceptable for thumbnails or previews.
Supported TIFF features
| Feature | Supported |
|---|---|
| Byte order | Little-endian (II) and big-endian (MM) |
| Compression | Uncompressed, PackBits, LZW |
| Colour mode | 8-bit grayscale, 8-bit RGB |
| Multiple files | Yes — drop several and each converts separately |
| 16-bit or CMYK | Not supported |
If your TIFF uses JPEG-in-TIFF compression, tiled layout (rather than strips), or CMYK colour, re-export it as a baseline uncompressed or LZW-compressed RGB TIFF from your image editor, then convert here.
When you would use this
Scanners produce TIFF by default — it is lossless and preserves every pixel from the scan bed. Once you have a safe TIFF copy on disk, converting to JPG gives you a much smaller file suitable for sharing by email or uploading to a web service that does not accept TIFF.
Design and print workflows deliver TIFF assets for maximum quality. When you need a web-ready version for a preview or social post, rather than opening a heavy design application just to export, drop the TIFF here and get a JPG in seconds.
Photography exports from some cameras still produce TIFF when the in-camera HDR or raw processor is used. Converting here gives you a shareable version without requiring Lightroom or Photoshop.
Everything happens locally — your images are never uploaded, stored, or seen by anyone.