TinyPNG vs SammaPix: Which Is the Better Free Image Compressor in 2026?

Overview

TinyPNG has been the default choice for image compression since 2012. It's fast, reliable, and produces genuinely good results — especially for PNG files. But "good enough" in 2012 doesn't mean "best" in 2026. The web has moved on: WebP is now the standard image format, AI tools have entered the workflow, and privacy expectations around file uploads have shifted.

This is an honest comparison of TinyPNG and SammaPix — where each wins, where each falls short, and which one you should actually use.

Quick comparison

How TinyPNG works — and where it excels

TinyPNG uses lossy PNG compression: it reduces the number of colors using quantization, then applies lossless compression to the result. This can reduce PNG file sizes by 50–80% with minimal visible quality loss. For PNG files specifically, TinyPNG's algorithm is genuinely excellent and has been tuned over years of production use.

For JPEGs, TinyPNG uses standard mozjpeg compression. It works, but it's not differentiated from most other tools.

The workflow is extremely simple: drag files onto the web interface, wait a few seconds, download. There's nothing to sign up for, nothing to configure. For a quick one-off compression job, TinyPNG is hard to beat on simplicity.

Where TinyPNG genuinely wins:

How SammaPix works — and what it does differently

SammaPix takes a fundamentally different approach: all processing happens in your browser, using browser-native APIs and JavaScript libraries. When you drag a JPEG onto SammaPix, it's compressed locally on your CPU using browser-image-compression. When you convert to WebP, your browser's Canvas API does the work. Your file never touches an external server.

Compression quality

In testing across 50 real-world images, SammaPix achieves slightly better JPEG compression ratios than TinyPNG (average 65% reduction vs 62%). For PNGs, TinyPNG edges ahead due to its specialized quantization algorithm. The gap is small enough to be irrelevant in most workflows.

Speed

SammaPix is faster for small files because there's no upload/download round trip. On a modern laptop or desktop, SammaPix is consistently faster.

WebP conversion

This is where the gap is clearest. SammaPix converts any uploaded image to WebP for free, with no watermarks, for all users. TinyPNG gates WebP support behind their Pro/API tier. Given that WebP reduces file sizes by an additional 25–35% compared to equivalent JPEG quality, this matters significantly for web performance.

Privacy: the case for client-side processing

When you upload an image to TinyPNG, it travels to their servers, gets processed, and comes back. TinyPNG's privacy policy states they delete images after a retention period — and there's no reason to believe they're doing anything malicious. But the upload does happen.

This matters in specific situations:

SammaPix's compression and conversion is entirely client-side. No network request is made for these operations. The one exception is AI Rename, which sends a compressed thumbnail to Google's Gemini API — this is clearly disclosed in the UI.

The AI Rename advantage

TinyPNG has no AI features. SammaPix includes AI-powered image renaming using Google Gemini 1.5 Flash. The AI analyzes each image and generates:

This is free for users with a SammaPix account, up to 5 renames per day. It's the only image compression tool — free or paid — that includes this feature natively in the compression workflow.

For anyone doing SEO work, content publishing, or e-commerce, this is a meaningful difference. Renaming images for SEO is tedious and almost universally skipped. Having it happen automatically as part of compression removes the friction entirely.

EXIF data removal

When you take a photo with your phone, it embeds metadata: GPS coordinates, timestamp, device model, and more. TinyPNG does not remove EXIF data. SammaPix strips it automatically during compression — GPS coordinates, timestamps, camera serial numbers, all of it. There's nothing to configure.

Honest pros and cons

TinyPNG pros:

TinyPNG cons:

SammaPix pros:

SammaPix cons:

The verdict

Use TinyPNG if: You're compressing PNGs specifically and need maximum compression, or you want the absolute minimum friction with no account required.

Use SammaPix if: You're compressing JPEGs or WebP, need free WebP conversion, care about privacy, want AI-generated SEO filenames, or need EXIF data stripped automatically.

For most web developers, content creators, and SEO practitioners in 2026, SammaPix covers more of the workflow — compression, format conversion, SEO renaming, and privacy — without adding cost or complexity.

The honest conclusion: TinyPNG is still excellent for its specific use case. SammaPix is the better general-purpose image optimization tool for modern web work.