Sarto
Photos, made to measure.
Name the limit. Sarto hits it.
Forms, email and marketplaces all cap photo size. Tell Sarto the limit — 200 KB, 2 MB, 600 × 600 pixels — and get a photo that fits, without sending it anywhere.
Features
Hit an exact file size
Type the limit in KB or MB. Sarto finds the best quality that fits under it and tells you if a photo cannot get that small.
Exact pixels
Set the longest side, the shortest side, or an exact width and height. Crop to fill or fit inside, your choice.
Convert formats
Open HEIC, JPG, PNG or WebP. Save as JPG, PNG or WebP.
Presets for common limits
Under 100 KB, under 1 MB, document photo sizes, listing sizes for online shops. One tap, then pick your photos.
See what changed
Every result shows before and after, the space saved, and a slider to compare the two.
Stays on your phone
Photos are processed on the device and never uploaded. No ads. No account needed.
Free to use. 5 photos a day at no cost.
Sarto Pro. Unlimited photos, larger batches and seller presets. Pay once, or yearly. Prices are shown in the store.
Ten languages. English, Spanish, Portuguese, German, French, Japanese, Turkish, Indonesian, Hindi and Arabic.
Questions and answers
Are my photos uploaded?
No. Sarto processes photos on your phone. They are not sent to us or to anyone else.
Do I need an account?
No. Sarto works without signing in, including purchases and restoring them.
What does the free version include?
Every tool, for 5 photos a day.
What is "Lifetime"?
A one-time purchase of Sarto Pro, with no renewal. It lasts for as long as Sarto is offered and supported.
Will my photo be accepted by a form or an office?
Sarto sets the file size, the pixels and the format you ask for. Whether a photo is accepted is decided by whoever receives it, so check their requirements.
How do I delete my data?
In the app: Settings → Privacy and data → Delete my data. Without the app: see Delete my data.
Sarto is not affiliated with Etsy, Amazon, Shopify, Instagram or any government agency. Preset names describe common size limits.