A measured example
| Recipe | Custom 76, written as JPEG, capture information kept |
|---|---|
| Before | 1.73 MB · 4032 × 3024 · JPEG |
| After | 787.8 KB · 4032 × 3024 · JPEG q76 |
| Change | −55.5% |
What this does
Compress JPEG files at a quality number you can see: the desk starts at 76 and writes every file as JPEG, keeping the date and camera unless you remove them. The honest limit: this is your browser’s own JPEG encoder, so it does not offer progressive or chroma controls, and results differ by a few percent between browsers.
When to use this, and when not
- Use it for camera and phone JPEGs that are larger than they need to be, or for a mixed set you want as JPEG.
- If every pixel has to stay the same, use compress image without losing quality.
- If a form gives a size in KB, reduce photo size in KB searches the quality for you.
Honest limits
- Progressive scans, trellis quantisation and 4:4:4 colour are not offered in this build.
- A JPEG already saved at a low quality usually cannot be made smaller by re-encoding; it is kept as it was and the row says so.
- CMYK JPEGs (from print workflows) are left exactly as they are.
Privacy on this page
Capture information is kept by default here, because a JPEG library is often kept for its dates. Choose No place on the recipe bar to remove only the location, or Strip to remove all of it. See what a skip means for every row code.
Questions
What is the best JPEG quality number?
For photographs looked at on a screen, 70 to 80 is where most people stop seeing a difference side by side, which is why this page starts at 76. Below about 60 flat sky starts to band and fine text starts to ring. Use the slider in the Recipe panel, then hold the compare button on one photo: the number is the same for every file, so one check tells you about the set.
Why did a JPEG get bigger?
Because it was already compressed harder than the number you chose. Re-encoding a quality-60 JPEG at 76 spends bytes preserving the first encoder's blocks. With 'anything that came out bigger' switched on (it is, by default) the original goes into the ZIP instead and its row says grew.
Is it progressive? Can I choose 4:4:4?
Not in this build. JPEGs are written by your browser's own encoder, which decides progressive scans and colour subsampling itself; this page does not claim controls it does not have. The quality number, the size rule, the dimensions and the metadata are yours to set.
Can I make a JPEG smaller without re-encoding it at all?
Yes: switch on Lossless only in the Recipe panel, or use compress image without losing quality. The Huffman tables are rebuilt and metadata edited, every pixel stays the same, and the saving is small.
Are my JPEGs uploaded?
No. Each file is decoded and encoded inside this tab. The site has no upload address.
More on this site: all tools.
Other jobs
More ways to shrink a photo
- Compress photosOne photo or a whole folder, one recipe, a skyline of sizes with a line you drag, and a receipt for every file.
- Compress PNGA 256 or 128-colour palette against a lossless pass, the smaller kept, transparency intact.
- Compress WebPLossy WebP at a quality you choose, or lossless with every pixel compared.
- Compress iPhone photosHEIC to small JPEG where your browser can open HEIC, with every format change stated on its row.
- Compress image without losing qualityNo re-encode: JPEG Huffman tables rebuilt, PNG recompressed, pixels compared before a row says identical.
- Reduce photo size in KBType a KB target or a range. Quality first, then fewer pixels, checked against the exact bytes written.
- Compress photo to 20 KBSignature-sized limits: the pixels come down as well as the quality, with a legibility floor.
- Compress photo to 50 KBThe 20–50 KB range bank and PAN-style forms ask for, with both ends checked.
- Compress photo to 100 KBQuality first, pixels kept where they can be: the common portal upload limit.
- Compress photo to 200 KBSharp enough to print, under 200 KB: usually quality alone gets there.
- Compress photo to 1 MBMB-scale limits for listings and portals: quality first from 88, pixels only if they must.
- Increase photo size in KBReach a form's minimum honestly: a higher quality, then more pixels up to a limit. Never padding.
- Compress photo for exam formSourced, dated presets for bank, PAN, NEET, SSC and US visa uploads, with a PASS or FAIL line per file.
- Compress signature to 20 KBPaper whitened, ink darkened, cropped to the ink, sized to 140 × 60 and checked.
- Compress photos for emailA per-file ceiling and a measured total for the set, to check against the attachment limit.
- Compress a photo libraryStorage framing: folder structure preserved, originals untouched, gigabytes counted.
- Compress images for websiteWebP at quality 80, long edge 1920, capture information removed, folders kept.
- Reduce image resolutionFewer pixels by percent, exact width × height, long edge or megapixels, at a light quality.