PicBrewery kuvaoptimointi ja -muunnin
  1. Etusivu
  2. Pakkaa
  3. Pakkaa JPG

Pakkaa JPG — ilmaiseksi verkossa, ei latausta

Drop a JPG or JPEG photo into PicBrewery and download a smaller file re-encoded with MozJPEG — no account, no watermark, no upload. Everything runs in WebAssembly inside your browser.

See the JPEG section on the formats hub for codec details.

Kuinka pakata JPG

  1. Open PicBrewery.
  2. Drag and drop your .jpg or .jpeg file (or several) onto the drop zone.
  3. PicBrewery decodes the JPEG and re-encodes JPEG, PNG, WebP and AVIF in parallel. Compare byte sizes in the results row — the JPEG column is your re-compressed JPG.
  4. Click the download icon on the JPEG cell, or use Download all as ZIP for batches.

Miten JPG-pakkaus toimii PicBreweryssä

PicBrewery does not resize or crop images. Compression means re-encoding the same pixels with a modern JPEG encoder (MozJPEG) at tuned quality settings, plus stripping EXIF, ICC and XMP metadata to save bytes.

For photos already saved at quality 85–90, a fresh MozJPEG pass at quality 75–80 often yields 10–30% smaller files with no visible difference. Gains are smaller if the source was already heavily optimized.

Pysy JPG:ssä vs WebP/AVIF

Pysy JPG:ssä maksimaalisen yhteensopivuuden vuoksi (sähköposti, CMS, printti). Webiin vertaa WebP- ja AVIF-sarakkeita. Katso JPG → WebP tai pakkaa WebP.

Usein kysytyt kysymykset

Heikentääkö JPG-pakkaus laatua?

Re-encoding JPEG is lossy — each save can add artifacts. PicBrewery defaults to quality settings tuned for size at matching perceived quality. Use the quality slider under Advanced settings if you need a higher bitrate.

Kuinka paljon JPG pienenee?

Typical camera JPEGs shrink 10–30% after MozJPEG re-encode and metadata stripping. Drop your file into PicBrewery to see exact byte counts for every output format side by side.

Säilyvätkö EXIF- ja GPS-tiedot?

No. PicBrewery strips EXIF, ICC and XMP on re-encode to keep files small. Keep the original if you need metadata.

Voinko pakata useita JPG-tiedostoja?

Yes — up to 20 files per batch, 20 MB each, with Download all as ZIP.

Muuttaako PicBrewery kuvien kokoa?

No. Compression here means re-encoding only — pixel dimensions stay the same.

Pakkaa JPG nyt

Drop JPG files into PicBrewery and download smaller JPEGs. 100% client-side.

Avaa PicBrewery