Best TinyPNG Alternative — Free, No Limits, Client-Side

Why Developers Look for TinyPNG Alternatives

TinyPNG is the go-to image compressor for web developers and designers. It produces excellent results, but its free tier has meaningful limitations:

• •5MB file size limit — Images larger than 5MB are rejected on the free tier. Modern cameras produce 10-30MB photos.
• •20 images per batch — Free users can only compress 20 images at once. For a product photoshoot or website migration, this means multiple sessions.
• •Server upload required — Every image is uploaded to TinyPNG's servers (owned by Tinify) for processing. Your product photos, client assets, and personal images pass through third-party infrastructure.
• •API pricing — The API costs $25/year for 10,000 compressions. Heavy users need the paid tier.

How to Compress Images with MiOffice (3 Steps)

1. 1

   Open the Image Compressor

   Visit the MiOffice Image Compressor. No download, no signup, works in any browser.

2. 2

   Add Your Images

   Drag and drop or select images. Add as many as you need — no 20-file cap, no 5MB limit. Supports JPG, PNG, WebP, and HEIC.

3. 3

   Download Compressed Images

   Compression happens instantly in your browser. Download individual files or all compressed images as a ZIP archive.

MiOffice vs TinyPNG Comparison

Client-Side Privacy for Your Images

When you use TinyPNG, every image is uploaded to Tinify's servers for compression. For product photography, client mockups, or personal photos, this means your visual assets pass through third-party infrastructure.

MiOffice compresses images entirely in your browser using Canvas APIs and optimized JavaScript compression algorithms. Your images never leave your device. This makes it safe for compressing confidential design assets, unreleased product photos, and personal images. For a detailed comparison, see the MiOffice vs TinyPNG page.