What this tool does
Big photos fill your phone, take ages to send and get rejected by websites. This tool re-saves your photos with smart compression, so a 4 MB photo often becomes 400 KB with no visible change. You choose the quality: higher keeps more detail, lower makes smaller files. Add many photos at once and download them one by one.
How to use it
- Choose one or more photos.
- Move the quality slider (75% is a good start).
- See each new size and how much you saved.
- Download the photos you want.
Why 123ToolBox
Your files stay with youEverything happens inside your browser. Nothing is uploaded to us or anyone else.
Free, no watermarkEvery tool is free. Your result has no logo or watermark.
No sign-upOpen the page and use it. No account, no email.
Made for phonesWorks on cheap Android phones as well as laptops.
FastNo upload or download wait. Small files finish in seconds.
Exact resultsWhen a form says “under 20 KB”, you get under 20 KB.
Questions people ask
Will my photo lose quality?
At 70–80% quality the change is very hard to see, while the file becomes much smaller.
Can I compress many images at once?
Yes. Choose several photos together; each one is compressed separately.
What formats are supported?
JPG, PNG and WEBP. You can keep the format or save as JPG or WEBP.
Are my images uploaded?
No. Compression happens on your device.
I need an exact size like 50 KB.
Use Resize photo to KB, which hits an exact KB limit.