MiniPx vs TinyPNG

Two of the most popular free image compressors, head to head. One uploads your files to a server. The other never lets them leave your browser. Here is how they actually compare.

Quick verdict

If privacy matters to you, or you need to compress more than a handful of images at a time, MiniPx is the clear winner. TinyPNG has a great API and solid compression quality, but the 20-image daily cap, 5MB file limit, and server-side processing are real limitations for most people.

Feature comparison

Feature

MiniPx

TinyPNG

Privacy

Client-side (files stay on your device)

Server-side (files uploaded to their servers)

Free limit

Unlimited

20 images/day, 5MB max

Signup required

No (but needed for API)

Formats

JPEG, PNG, WebP, AVIF, HEIC, SVG, PDF

PNG, JPEG, WebP, AVIF

Max file size

No limit

5 MB (free tier)

Batch processing

Yes, unlimited

Up to 20 at once

API access

Yes (paid plans)

Offline capable

Yes

Speed

Instant (no upload)

Depends on connection

The privacy difference is huge

This is the single biggest difference between these two tools. When you compress an image with TinyPNG, your file gets uploaded to their servers in the Netherlands. Their system processes it, and you download the result. That round trip takes time, and it means your images pass through third-party infrastructure.

MiniPx does everything in your browser. Your images never leave your device. If you are compressing client work, personal photos, or anything you would rather keep private, that matters a lot. I think this alone is reason enough to pick MiniPx for most use cases.

Format support

TinyPNG started with PNG (the name gives it away) and later added JPEG and WebP support. That covers the basics, but it leaves out a lot of formats people actually need in 2026.

MiniPx handles 7+ formats including HEIC (what your iPhone shoots), AVIF (the new web standard), SVG, and PDF. If you have ever tried to compress an iPhone photo on TinyPNG and got an error because it was a HEIC file, you know why this matters.

Free tier limits

TinyPNG gives you 20 free compressions per day with a 5MB file size cap. That sounds reasonable until you are batch-processing product photos for an e-commerce store or compressing a large photo gallery. Hit the limit and you either wait until tomorrow or pay for a Pro plan.

MiniPx has no limits. No monthly caps, no file size restrictions, no signup walls. Compress as many images as you want, whenever you want. Since the processing happens in your browser, there is no server cost to offset with usage limits.

Where TinyPNG wins

I want to be fair here. TinyPNG has a solid API that developers can plug into build pipelines, CMS integrations, and automated workflows. If you need programmatic compression at scale (and you are willing to pay for it), TinyPNG's API is well-documented and reliable.

TinyPNG also has WordPress and Shopify plugins that auto-compress images on upload. If your entire workflow lives inside those platforms, that convenience is hard to beat.

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Try MiniPx Free — No Signup Needed →

Unlimited compressions. No file uploads. 7+ formats.

MiniPx vs TinyPNG — Free, Fast & Private

TinyPNG has been around since 2014 and built a strong reputation for PNG and JPEG compression. The panda branding is iconic, and the tool genuinely produces good results. But the web has changed a lot since 2014.

Today, privacy-conscious users do not want to upload images to third-party servers when they do not have to. Formats like HEIC and AVIF are everywhere. And batch processing is table stakes, not a premium feature.

MiniPx was built for how people work in 2026. Everything runs in your browser using modern compression libraries. You get the same quality reduction TinyPNG is known for, without the server round-trip, the monthly limits, or the format restrictions.

Which should you pick?

If you are a developer who needs API-based compression in a build pipeline, TinyPNG is still a solid choice. For everyone else — designers, bloggers, small business owners, anyone who just needs to shrink images quickly — I think MiniPx is the better tool. It is faster, more private, supports more formats, and costs nothing.

For more comparisons, check out our best image compressor 2026 roundup where we test five popular tools head to head.

How it works

Open MiniPx in your browser: Go to minipx.com. No signup or download needed.
Drop your images: Drag and drop any number of images — JPEG, PNG, WebP, HEIC, AVIF, or SVG.
Pick a compression preset: Choose Smart for automatic quality, or set a custom quality level.
Download compressed files: Grab your optimized images instantly. They never left your device.

Frequently asked questions

Is MiniPx better than TinyPNG?

For most users, yes. MiniPx offers unlimited free compression with no signup, processes everything in your browser for full privacy, and supports 7+ formats compared to TinyPNG's 3. TinyPNG has a better developer API, though.

Does TinyPNG upload my images to a server?

Yes. TinyPNG processes images on their servers in the Netherlands. Your files are uploaded, compressed server-side, and the results are sent back. MiniPx processes everything locally in your browser — nothing is uploaded.

Is TinyPNG really free?

TinyPNG allows 20 free compressions per day with a 5MB file size limit. Beyond that, you need a paid plan. MiniPx is completely free with no limits on compression count or file size.

Can TinyPNG handle HEIC files?

No. TinyPNG supports PNG, JPEG, and WebP only. If you need to compress HEIC images (common from iPhones), MiniPx handles them natively along with AVIF, SVG, and PDF.

Which compressor has better image quality?

Both produce excellent compression results for JPEG and PNG. The quality difference is minimal. The main differences are in privacy, format support, and usage limits rather than raw compression quality.