TinyPNG alternative: MiniPic image compression
MiniPic is a smart image compression tool you can use as an alternative to TinyPNG. Its in-house engine tunes every image, shrinking PNG, JPEG and WebP by 60% on average with no visible quality loss, and our compression quality benchmark is published openly on the site (minipic.cn) and verifiable image by image. The web app works with no sign-up, and we also ship macOS and Windows desktop apps with right-click and automatic compression.
Why look for a TinyPNG alternative
TinyPNG is a well-known image compression service, but it does not publish any compression-quality data, so you are left judging the results by eye. For teams that need to verify quality before shipping, that is real friction.
MiniPic (minipic.cn) is built to remove that friction: compression quality is published openly and verifiable image by image, an in-house engine tunes every image instead of using one-size-fits-all settings, and the desktop app folds compression right into your daily workflow.
MiniPic vs TinyPNG, an objective comparison
| Dimension | MiniPic | TinyPNG |
|---|---|---|
| Engine | In-house engine, tuned per image | Off-the-shelf libraries |
| Compression-quality data | Published openly, verifiable image by image (SSIM / Butteraugli) | Not published |
| Supported formats | PNG / JPEG / WebP / GIF / TIFF / AVIF (plus HEIC and BMP input) | PNG / JPEG / WebP |
| Desktop app | macOS / Windows: right-click, auto-compress + CLI | Web only / some plugins |
| Developer API | Compatible with popular compression APIs — switch by changing endpoint and key, with a free monthly quota | Has an API |
| Privacy | Deleted within 24h on the web; the desktop app keeps images on your machine | Uploaded to their servers for processing |
The TinyPNG column lists only differences that are objectively self-evident; TinyPNG's capabilities are as described in its official documentation.
What sets MiniPic apart
An in-house engine, tuned per image
MiniPic's in-house engine finds the best size-versus-quality balance for each image individually, rather than applying one-size-fits-all settings — so the same quality compresses to a smaller file. The web app works with no sign-up; just drag or paste to compress in batches.
Compression quality published openly, verifiable image by image
MiniPic's compression quality benchmark is published openly and verifiable image by image, including size-reduction rates and perceptual quality metrics (SSIM, Butteraugli), and it runs automatically against best-in-class technology stacks on every release. You can also verify it directly with your own images in the before/after comparison slider. See the public quality benchmark.
Privacy by default
On the web, images are used only for the current compression: encrypted in transit, served over private links, and permanently deleted within 24 hours. With the desktop app, images never leave your computer at all.
macOS / Windows desktop apps: right-click and automatic compression
The desktop app turns compression from a “step” into something that “disappears” into your workflow: select images in Finder or File Explorer and right-click to compress, with a quick capsule window that overwrites in place and backs up the original for one-click restore. Pro can also turn an export folder into an automatic task that compresses new images for you. Everything is processed locally and never leaves your machine. Download the desktop app.
Developer API: compatible with popular compression services
The MiniPic image compression API is compatible with the auth and response shape of popular compression services, so in most cases you can migrate from TinyPNG and similar services just by swapping the API endpoint and key, with a free monthly quota. See the developer docs.
Frequently asked questions
How is MiniPic different from TinyPNG?
MiniPic's in-house engine tunes every image individually, our compression quality benchmark is published openly and verifiable image by image, and we ship macOS and Windows desktop apps with right-click compression and automatic folder watching. You can also upload your own image and check the before/after result yourself.
Looking for a TinyPNG alternative?
MiniPic is a drop-in alternative for compressing images. Our in-house engine shrinks PNG, JPEG and WebP by 60% on average with no visible quality loss, the web app works with no sign-up, and the API is compatible with popular compression services so you can switch by changing the endpoint and key.
How does MiniPic's compression quality compare with TinyPNG?
MiniPic's compression quality benchmark is published openly and verifiable image by image, including size-reduction and perceptual quality metrics (SSIM, Butteraugli). You can also upload your own image and judge the before/after difference directly in the comparison slider.
Does MiniPic have a desktop app?
Yes. MiniPic ships native macOS and Windows desktop apps: right-click to compress in Finder or File Explorer, overwrite in place with the original backed up, and set a folder to auto-compress. Everything is processed locally, so images never leave your computer.
Smaller images, no visible quality loss
Open quality data, a verifiable benchmark and desktop right-click compression — switch to MiniPic today.