Image Optimize vs TinyPNG
TinyPNG is a trusted compression tool. Both support modern formats like WebP and AVIF — but Image Optimize gives you quality control, image resizing, and unlimited format conversions right on the free plan.
Feature
Output formats
WebP, AVIF, PNG, JPEG
WebP, AVIF, PNG, JPEG
Quality control slider
Image resizing
Format conversions on free plan
Unlimited
3 per session
Batch processing (free)
Up to 5 files at once
Up to 20 per session
Folder upload
Ultra plan only
Bulk ZIP download (free)
Max file size (free)
5 MB
5 MB
Max file size (paid)
50 MB
150 MB (Ultra)
Recent optimization history
Saved locally in browser
No account required
Where Image Optimize pulls ahead
You control the quality
TinyPNG applies a fixed smart compression algorithm with no quality slider. With Image Optimize you dial in exactly the quality level you want — anywhere from maximum compression to near-lossless output — so you're always in control of the trade-off.
Resize and compress in one step
Image Optimize includes a width resizing slider so you can downscale and compress in a single pass. TinyPNG doesn't offer resizing, which means an extra tool in your workflow every time you need a smaller image.
ZIP download on the free plan
TinyPNG's free plan has you downloading images one at a time. Image Optimize packages all your results into a single ZIP so you can move on immediately — no plan upgrade required.
Unlimited format conversions — free
TinyPNG limits free and Pro users to just 3 format conversions per session. You need the Ultra plan to go unlimited. With Image Optimize, format conversion is always unlimited, even on the free tier.
Your history, kept in your browser
Image Optimize automatically saves your recent optimization history directly in your browser. No account needed, and images are never saved on a server. TinyPNG shows no history once you close the tab.
More control. More conversions. Still free.
Quality slider, image resizing, unlimited format conversions, and ZIP download — all available on the free plan. No credit card required.
Start optimizing freeFrequently asked questions
Does TinyPNG now support WebP and AVIF?
Yes — TinyPNG added WebP and AVIF support, so format coverage is now similar between the two tools. The key differences are in quality control, image resizing, and how many format conversions you get on the free plan.
When should I choose TinyPNG over Image Optimize?
TinyPNG is a great choice if you need very large file support (up to 150 MB on their Ultra plan) or if you prefer uploading entire folders at once. Image Optimize wins on quality control, resizing, and free-tier generosity for format conversions.
Can I resize images in Image Optimize?
Yes. Image Optimize includes a width input field so you can resize and compress in a single step — something TinyPNG's web tool does not offer.
Is the Image Optimize free plan really free?
Completely free, no credit card required. You get 20 optimizations per day, 5 files at a time, 5 MB per file, and unlimited format conversions. Upgrade when you need higher limits.
Does Image Optimize save my optimization history?
Yes. Image Optimize saves your recent optimization history locally in your browser, so you can redownload your optimized images if needed. No account is required and images are never saved on a server. TinyPNG doesn't offer any history tracking.