JPEGMinify vs TinyPNG vs Squoosh: Which Image Compressor Wins?
Three of the most popular free image compression tools are JPEGMinify, TinyPNG, and Squoosh. Each takes a different approach. Understanding the trade-offs helps you pick the right tool — or combine them — for your workflow.
At a Glance
| Feature | JPEGMinify | TinyPNG | Squoosh |
|---|---|---|---|
| Upload to server? | ❌ Never | ✅ Always | ❌ Never |
| Batch processing | ✅ Unlimited | ⚠️ 20 files free / month | ⚠️ One at a time |
| ZIP download | ✅ | ✅ (paid) | ❌ |
| Output: JPEG | ✅ MozJPEG | ✅ | ✅ MozJPEG |
| Output: WebP | ✅ | ✅ (paid) | ✅ |
| Output: AVIF | ❌ | ❌ | ✅ |
| Output: PNG | ❌ | ✅ | ✅ |
| Resize | ✅ | ✅ (paid) | ✅ |
| Before/after compare | ✅ Drag slider | ❌ | ✅ Side-by-side |
| Dark mode | ✅ | ❌ | ✅ |
| Price | Free | Free tier + paid | Free |
| Account required | ❌ | ❌ (free tier) | ❌ |
| API available | ❌ | ✅ (paid) | ❌ |
JPEGMinify — Best for Privacy and Bulk JPEG Compression
JPEGMinify is built around one core principle: your images never leave your device. Compression runs in your browser using MozJPEG WebAssembly. No uploads, no API calls, no accounts.
Where JPEGMinify wins
- Privacy-first workflows — client photos, legal docs, confidential materials
- Unlimited batch compression — no free-tier limits
- Drag comparison slider — the most intuitive quality-check UI of the three
- ZIP download — get all files in one click
- Settings persistence — remembers your last quality and format across sessions
- JPEG → WebP in one step
Where JPEGMinify falls short
- No PNG compression (output only, not input-format-specific optimization)
- No AVIF output
- No developer API
TinyPNG — Best for PNG Compression and API Integration
TinyPNG is one of the most-used online compression tools, famous for shrinking PNG files dramatically. It uses a proprietary lossy algorithm for PNG that reduces file sizes by 50–70% with excellent quality.
Where TinyPNG wins
- PNG optimization — market-leading PNG compression
- Developer API — automate compression in your build pipeline (Node.js, PHP, Python SDKs)
- WordPress plugin — compresses on upload automatically
- Reliability — been around since 2011, trusted by millions
Where TinyPNG falls short
- Uploads your images to their servers — privacy concern for sensitive content
- Free tier: 20 files per month (500 with API key)
- Resize, WebP output, and ZIP download require a paid plan
- No real-time before/after comparison
Squoosh — Best for Format Experimentation and AVIF
Squoosh is Google's open-source in-browser compression tool. It runs everything locally (like JPEGMinify) and supports the widest range of input/output formats including AVIF, which neither JPEGMinify nor TinyPNG support.
Where Squoosh wins
- AVIF output — largest compression gains of any format
- Most codec options — OxiPNG, MozJPEG, WebP, AVIF, JPEG XL
- Side-by-side comparison with zooming
- Fully offline-capable as a PWA
- Open source
Where Squoosh falls short
- One image at a time — no batch processing in the UI
- No ZIP download
- More complex UI — steeper learning curve for non-technical users
- Slower for large batches (no parallelism)
Which Tool Should You Use?
- Processing client photos, HR documents, or any sensitive images: JPEGMinify — nothing leaves your browser.
- Bulk JPEG compression with ZIP download (no account needed): JPEGMinify.
- PNG compression or developer API integration: TinyPNG.
- Experimenting with AVIF or comparing many codec settings: Squoosh.
- WordPress plugin with auto-compress on upload: TinyPNG's WordPress plugin or Imagify.
Many professionals use all three: JPEGMinify for day-to-day bulk JPEG work, Squoosh when evaluating AVIF for a new project, and TinyPNG's API for automated pipelines.
Try JPEGMinify Now
Drop your images at jpegminify.com. Adjust the quality slider, compare before/after, and download the results — all without an account or internet connection to any server.