Compress Image
Reduce image file size. Free, no signup required.
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How It Works
Upload your images — JPG, PNG, or WebP
Choose compression level — the recommended setting works great for most uses
Download compressed images — typically 50-80% smaller
Why Use OneConvertly to Compress Image?
100% Private
Your files never leave your device. Everything is processed in your browser.
No Signup Required
Use this tool instantly — no account, no email, no limits.
Works on Any Device
Runs in Chrome, Firefox, Safari, and Edge on desktop and mobile.
Completely Free
No watermarks, no daily caps, no hidden fees.
Frequently Asked Questions
How much will my images be compressed?
Typical compression: JPG files reduce by 40-70%, PNG files by 30-60%. Results vary based on image content.
Will compression reduce the quality?
The recommended setting uses smart compression that maintains visual quality while significantly reducing file size. Most people cannot tell the difference.
Can I compress multiple images at once?
Yes. You can compress up to 20 images at once. Each image is processed independently.
Are my images uploaded to a server?
No. All compression runs locally in your browser. Your images never leave your device, ensuring complete privacy.
Can I compress images on my phone?
Yes. OneConvertly works in any modern mobile browser — Safari on iPhone, Chrome on Android — with no app installation needed.
What is the maximum file size supported?
Individual images up to 100MB are supported. You can batch-compress up to 20 files at once.
How does this compare to TinyPNG or Squoosh?
Like Squoosh, OneConvertly processes images entirely in your browser — nothing is uploaded. Unlike TinyPNG, there are no daily limits or file count restrictions.