Digitoly
Compress JPG — reduce file size, free, right in your browser
Shrink your JPG's file size with an adjustable quality slider, and see the exact before-and-after size before you download.
Choose one: either convert to a plain format below, or pick an AI option — not both. When an AI option is selected, Format and Resolution are ignored (each AI option decides its own output).
History
Why compress a JPG?
Large photo files are slow to upload, slow to email, and slow to load on a website. Compressing a JPG reduces its file size by allowing a small amount of quality loss in exchange for a much smaller file — for most photos, you can shrink the file by 50–90% before the difference becomes visible to the eye.
Digitoly's compression happens entirely in your browser, with a quality slider you control directly and a live comparison showing exactly how many kilobytes you're saving, so you're never guessing.
Frequently asked questions
80–92% is a good starting point for most photos — you'll see meaningful size savings with little to no visible quality loss. Push it lower (50–70%) for maximum compression if file size matters more than quality, such as for email attachments.
PNG is a lossless format by design, so a quality slider doesn't apply to it the way it does to JPG or WEBP. For a PNG-heavy image, converting to JPG or WEBP first (if transparency isn't needed) will give you much greater size savings.
Yes — your first 5 conversions are free with no card required.
Yes — add multiple images, set your quality level once, and convert them all together, then download as a ZIP.
Need a different conversion? See everything Digitoly does or check pricing.