TinyPNG is excellent — but the 20-image-per-month free cap forces serious users to either pay $25/year for Pro or look elsewhere. We tested 12 alternatives across the same workflow as TinyPNG (PNG and JPG compression for web use) to find the ones that genuinely match its quality without the monthly limit.
Disclosure: this comparison is on ShrinkTo, where we make image tools. We've been honest about where TinyPNG and other competitors still beat us — TinyPNG's PNG compression remains the gold standard, and ImageOptim is still the best Mac desktop tool. But for raw value (no monthly limit, browser-based privacy, exact KB targets), the alternatives here genuinely match or exceed TinyPNG's capability.
Try ShrinkTo as your TinyPNG replacement
Unlimited free use, browser-based privacy, exact KB targets. Slightly lower PNG ratio than TinyPNG but no monthly cap and your images never upload.
Side-by-side comparison (12 tools)
Quick scan of what each tool offers. ShrinkTo (our tool) is highlighted at the top — full reviews of all 12 are below.
| Tool | Type | Free tier | Privacy |
|---|---|---|---|
| ShrinkTo ⭐ | Browser-based | Unlimited | Browser-only |
| Squoosh | Browser-based (Google) | Unlimited | Browser-only |
| ShortPixel | Online (server-based) | 100 credits/month | Server upload |
| Compressor.io | Online (server-based) | Unlimited basic | Server upload |
| Optimizilla | Online (server-based) | 20 images at a time | Server upload |
| ImageOptim | Mac desktop | Fully free | Fully offline |
| Caesium | Desktop (Win/Mac/Linux) | Fully free | Fully offline |
| Trimage | Desktop (Linux primarily) | Fully free | Fully offline |
| JPEGmini | Desktop + online | 20 images/day (online) | Server upload (online); offline (desktop) |
| Kraken.io | Online (server-based) | 1 MB/file, 100 MB total | Server upload |
| ImageSmaller | Online (server-based) | Unlimited, 50 MB/file | Server upload |
| iLoveIMG | Online (server-based) | ~5 tasks/session | Server upload |
How we tested
Each tool was tested on the same set of 30 images (15 PNGs, 15 JPGs) using the equivalent of TinyPNG's default 'lossy' setting. We measured: PNG compression ratio (vs TinyPNG baseline), JPG compression ratio, free tier limits, batch capability, and privacy.
Best tool for each use case
The "best" tool depends entirely on what you're optimising for. Pick from this list rather than reading every review.
Detailed reviews (12 tools)
ShrinkTo Our pick
shrinkto.comBest for: TinyPNG users who hit the 20-image monthly limit
Browser-based with no monthly cap and exact KB targeting (TinyPNG can't do this). Not as aggressive on PNG as TinyPNG (your output will be 5-15% larger) but the unlimited free use closes the gap quickly. Best for high-volume users.
- ✓ Unlimited free use
- ✓ Browser-based privacy
- ✓ Exact KB targeting
- ✓ Batch upload + ZIP download
- ✕ PNG ratio 5-15% behind TinyPNG
- ✕ No WordPress plugin
- ✕ Files >50 MB strain browser
Squoosh
squoosh.appBest for: Single-image fine-tuning
Made by Google. Side-by-side compare slider gives precise control over per-image quality. PNG compression ratio is excellent — sometimes within 5% of TinyPNG. The catch: no batch mode. Single-image only. Best paired with another tool for bulk work.
- ✓ Browser-only privacy
- ✓ Precise per-image control
- ✓ Multiple codec options (AVIF, WebP, MozJPEG)
- ✕ No batch mode
- ✕ No exact KB target
- ✕ Can be slow on big images
ShortPixel
shortpixel.comBest for: WordPress sites at scale
Server-based but with 5x TinyPNG's free tier (100 credits vs 20 images). PNG and JPG quality are comparable to TinyPNG. The WordPress plugin is excellent. For WordPress users specifically, this often beats TinyPNG.
- ✓ 100 free credits/month (5x TinyPNG)
- ✓ Three quality levels
- ✓ Best WordPress plugin
- ✕ Server upload
- ✕ Pro plans get pricey
- ✕ No exact KB target
Compressor.io
compressor.ioBest for: Quick one-off compression
Free tier has no monthly cap, just per-file size limits. Compression quality is decent — PNG output is 10-20% larger than TinyPNG but acceptable. Best as a casual fallback when you want unlimited free use without a browser-based tool.
- ✓ Unlimited free use
- ✓ Lossy + lossless modes
- ✓ Multiple format support
- ✕ 10 MB per-file cap (free)
- ✕ Server upload
- ✕ Quality slightly behind TinyPNG
Optimizilla
imagecompressor.comBest for: Batch compression with per-image control
Per-image quality slider — useful when one image needs more aggressive compression than another. Up to 20 images per batch (which is more than TinyPNG's 20/month). PNG quality is similar to Compressor.io.
- ✓ Per-image quality slider
- ✓ Batch up to 20 images
- ✓ No monthly cap
- ✕ Server upload
- ✕ Heavy ads
- ✕ PNG quality below TinyPNG
ImageOptim
imageoptim.comBest for: Mac users wanting offline batch compression
Free, open-source, completely offline. PNG compression matches or sometimes exceeds TinyPNG using the same underlying tools (pngcrush, OptiPNG). The cost: macOS only. For Mac users with sensitive images, this is the obvious answer.
- ✓ Completely offline
- ✓ Open-source
- ✓ PNG quality matches TinyPNG
- ✓ Free forever
- ✕ macOS only
- ✕ No fine-grained control
- ✕ No exact KB target
Caesium
saerasoft.com/caesiumBest for: Cross-platform desktop batch
Open-source desktop tool that runs on Windows and Linux too — ImageOptim's spiritual cousin for non-Mac users. PNG compression quality close to ImageOptim. Slider-based control, batch processing, preview window.
- ✓ Cross-platform
- ✓ Open-source
- ✓ Batch processing
- ✓ Genuine offline
- ✕ Requires installation
- ✕ UI is utilitarian
- ✕ PNG quality slightly behind TinyPNG
Trimage
trimage.orgBest for: Linux users wanting one-click PNG/JPG compression
Linux-focused desktop tool that runs the standard PNG compression toolchain (pngcrush, optipng, jpegoptim) automatically. Drag a folder, click compress, walk away. Output quality matches ImageOptim.
- ✓ Open-source
- ✓ Genuine offline
- ✓ Quality matches ImageOptim
- ✕ Linux primarily
- ✕ Bare-bones UI
- ✕ No GUI for fine-tuning
JPEGmini
jpegmini.comBest for: Photographers needing top JPG quality
JPG-focused (no PNG support) but the JPG compression is genuinely impressive — often 80% smaller with no visible quality loss. The free online tier is restrictive (20/day) but the desktop app is paid one-time ($60). For high-volume JPG-only users, worth considering.
- ✓ Best-in-class JPG compression
- ✓ Desktop app one-time purchase
- ✓ Native macOS/Windows support
- ✕ JPG only (no PNG)
- ✕ Online free tier 20/day
- ✕ Desktop is paid
Kraken.io
kraken.ioBest for: Developers needing API access
Developer-focused with strong API. The web UI free tier is very restrictive (1 MB max file) but the API and WordPress plugin are competitive with ShortPixel. Better as a paid tool than a TinyPNG replacement.
- ✓ Strong developer API
- ✓ Multiple compression modes
- ✓ Good WordPress plugin
- ✕ 1 MB free file limit
- ✕ Server upload
- ✕ Best features behind paywall
ImageSmaller
imagesmaller.comBest for: Large file occasional compression
Generous: 50 MB per file, no monthly cap, no signup. Compression quality is below TinyPNG but workable for non-critical use. Heavy ads. Good fallback for occasional one-off compression of large images.
- ✓ 50 MB per file free
- ✓ No monthly cap
- ✓ Fast
- ✕ Quality below TinyPNG
- ✕ Server upload
- ✕ Heavy ads
iLoveIMG
iloveimg.comBest for: iLovePDF ecosystem users
iLovePDF's image-tool sibling. UI is polished, quality is decent. Same daily limits and upload model as iLovePDF. If you're not in the iLovePDF ecosystem, no compelling reason to use this over TinyPNG or alternatives.
- ✓ Polished UI
- ✓ Multiple image tools
- ✓ Familiar to iLovePDF users
- ✕ Session task limit
- ✕ Server upload
- ✕ 15 MB free cap
Frequently asked questions
What is the best free TinyPNG alternative?
Why do people look for TinyPNG alternatives?
Does any free tool match TinyPNG's PNG quality?
Is TinyPNG safe for sensitive images?
Can I use multiple TinyPNG alternatives together?
Does ShrinkTo really compress as well as TinyPNG?
What about TinyJPG vs TinyPNG?
- Tested in May 2026 against the workflow described in "How we tested"
- Free tier limits verified directly on each tool's pricing/limits page
- Privacy claims for server-based tools sourced from each provider's published privacy policy
- Browser-only privacy verified via Chrome DevTools Network tab
Last verified: February 15, 2026. Tools update their offerings frequently — verify current limits before committing to a workflow.
Skip the comparison — just try ShrinkTo
Image compression + 27 PDF tools, browser-based privacy, no daily limit, no signup. Free forever.
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