Free TinyPNG alternatives — 2026 comparison
TinyPNG produces excellent output, but the 5 MB per-file cap and 20-image batch limit push heavy users to look for alternatives. Here are the ones that match or beat TinyPNG's compression quality — ranked honestly.
Why people look for TinyPNG alternatives
Free tier is capped at 5 MB per file. Any modern smartphone photo (12–48 MP) exceeds 5 MB before compression. TinyPNG asks you to resize first or sign up for a paid API.
Free web tool caps batches at 20 files. If you're processing a folder of product photos or blog images, you'll hit the batch ceiling constantly and have to run multiple passes.
Paid API is $25 for 10,000 compressions. For heavy or scripted use, the API is priced fine — but for occasional web batches, no one wants a paid plan. Several alternatives are unlimited on the free tier.
Top 5 TinyPNG alternatives
1. iFormat — Free, unlimited batches, no file cap
Try it: iFormat.
Strengths: No 5 MB file size limit; No batch size limit; Handles PNG, JPG, WebP, and HEIC in one tool; No sign-up, no watermark.
Trade-offs: Compression quality is comparable to TinyPNG but not always better; Web-only, no CLI or desktop app.
Best for: Anyone hitting TinyPNG's file or batch limits and not wanting to pay.
2. Squoosh — Google's open-source image compressor
Strengths: Fully client-side — image never leaves your browser; Best-in-class control (per-format encoder settings, before/after slider); Supports MozJPEG, WebP, AVIF, OxiPNG.
Trade-offs: Single-file only — no batch mode; Requires manual encoder tuning for best results.
Best for: When you need maximum quality control per image and don't care about batches.
3. Compressor.io — Simple, opinionated compression
Strengths: Very simple UI — drop file, get output; Both lossy and lossless modes; Free tier allows unlimited compressions.
Trade-offs: Requires sign-up after a few files; Max file size 10 MB on free tier.
Best for: One-off compressions where you want zero configuration.
4. Optimizilla — Batch-focused, manual quality per image
Strengths: Batch up to 20 files at once; Per-image quality slider — preview before download; No sign-up.
Trade-offs: Only supports JPG and PNG (no WebP, HEIC, AVIF); UI shows ads.
Best for: Batches where you want to fine-tune quality per image before downloading.
5. ImageOptim — Mac desktop app, industry standard for devs
Strengths: Runs entirely offline on macOS; Chains multiple compressors (MozJPEG, Zopfli, OxiPNG, Guetzli); Integrates into build tools (Gulp, Webpack plugins).
Trade-offs: macOS only — no Windows or web version; Desktop only, no cloud batch UI.
Best for: macOS developers optimizing images as part of a build pipeline.
Feature-by-feature comparison
Max file size (free) — TinyPNG: 5 MB; iFormat: No hard limit; Squoosh: Browser RAM; Compressor.io: 10 MB; Optimizilla: 5 MB.
Batch size limit — TinyPNG: 20 files; iFormat: Unlimited; Squoosh: 1 file; Compressor.io: A few; Optimizilla: 20 files.
Requires sign-up — TinyPNG: No; iFormat: No; Squoosh: No; Compressor.io: After few; Optimizilla: No.
Formats supported — TinyPNG: PNG, JPG, WebP; iFormat: PNG, JPG, WebP, HEIC; Squoosh: Everything; Compressor.io: JPG, PNG, GIF, SVG; Optimizilla: JPG, PNG.
Client-side processing — TinyPNG: No; iFormat: Partial; Squoosh: Fully; Compressor.io: No; Optimizilla: No.
Paid API — TinyPNG: $25 / 10k; iFormat: None; Squoosh: No (open source); Compressor.io: Available; Optimizilla: No.
Best output quality — TinyPNG: Excellent; iFormat: Very good; Squoosh: Excellent w/ tuning; Compressor.io: Very good; Optimizilla: Good.
Which one should you pick?
If TinyPNG's 5 MB or 20-file limit is your blocker, iFormat is the direct replacement — same quality range, no caps, no sign-up. If you want maximum control and don't mind processing one file at a time, Squoosh is the technically superior choice (it's literally what Google built to demo modern image formats). ImageOptim remains the right pick for Mac-based developers integrating compression into a build pipeline. Stick with TinyPNG only if you're paying for their API and value the brand-name reliability.
Frequently asked questions
Is any tool truly as good as TinyPNG for PNG compression?
Squoosh with the OxiPNG encoder matches or beats TinyPNG on most PNG files. iFormat and Optimizilla are consistently close, typically within 5% of TinyPNG's output size at the same visual quality. For most web use cases, you won't see the difference.
Which alternative supports HEIC (iPhone photos)?
iFormat handles HEIC directly — you can drop iPhone photos in without converting to JPG first. TinyPNG, Compressor.io, and Optimizilla all require HEIC to be converted first. Squoosh supports HEIC decode but not encode.
Are these free alternatives safe for private photos?
Squoosh is the safest by design — it runs entirely in your browser, so no image is ever uploaded. ImageOptim is desktop-only, same guarantee. iFormat and TinyPNG upload to servers and auto-delete after a short window. For truly private photos, prefer Squoosh or ImageOptim.
Do any of them support AVIF or JPEG XL output?
Squoosh is the only listed alternative with AVIF encode support and JPEG XL encoding. If you're actively adopting next-gen formats, use Squoosh for export and iFormat or TinyPNG for legacy PNG/JPG compression.