Image guides
How to Convert JPG to TIFF in Your Browser
JPG throws away detail permanently through lossy compression, and TIFF can’t get that detail back — so converting JPG to TIFF isn’t a quality upgrade, it’s a container change for software that needs an uncompressed raster master. This guide covers what the conversion actually preserves, why the file grows so much, and when TIFF is worth it.
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How JPG becomes TIFF
The browser decodes the JPEG or JFIF file into a raw RGB pixel grid, the same step any viewer performs to display it, then writes those pixels into an uncompressed 8-bit TIFF with no further compression.
What changes when you convert
Whatever detail JPEG’s compression already discarded stays discarded — TIFF just stops compressing further, it doesn’t reconstruct anything. File size increases sharply since raw pixels replace JPEG’s compressed data, often many times larger for the same image. No alpha channel is added, since JPG never had one to begin with.
When TIFF is the right choice — and when it isn’t
Right for prepress, scanning-adjacent, and archival pipelines that specifically require an uncompressed TIFF even from a JPG source. Wrong choice if you’re hoping conversion recovers quality — it can’t; if you need a genuinely higher-fidelity copy, re-export from the original source instead, if you still have it.
Limitations and privacy
Accepts JPG, JPEG, and JFIF sources alike, since JFIF is a JPEG-based format. Output is a standard baseline uncompressed TIFF, widely readable by imaging software. Conversion runs locally in your browser; the file is not uploaded to Looty Tools servers.
Convert JPG to TIFF FAQ
- Can converting to TIFF fix JPEG compression artifacts?
- No. TIFF output here is lossless going forward, but it can’t undo detail JPEG already discarded.
- Why does the file grow so much if nothing is added?
- Raw, uncompressed pixels replace JPEG’s compressed data — the growth is from removing compression, not adding detail.
- Does this work with JFIF files too?
- Yes. JFIF is a JPEG-based format, so .jfif, .jfi, and .jif files are accepted alongside .jpg and .jpeg.
- Is there ever a reason to convert a JPG straight to TIFF instead of re-scanning?
- Mainly when the JPG is the only copy you have and the destination software insists on TIFF specifically.
- Is my photo uploaded anywhere?
- No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.
Related guides
- Convert PNG to TIFFConvert a PNG to uncompressed 8-bit RGBA TIFF locally for print, scanning, and archival workflows — choose the file and download the result.
- Best Format by Use CaseA quick reference for choosing between JPG, PNG, WebP, AVIF, TIFF, ICO, TGA, QOI, and PPM based on what you are actually trying to do.
- Convert Images Without UploadingLearn what browser-local image conversion means on Looty Tools, what stays on your device, and how Image Converter avoids a conversion upload.
