the best squoosh alternative in 2026 (free, private, no uploads)
squoosh is a great tool, but it's not for everyone. maybe it feels overcomplicated, maybe you just need simple format conversion without the compression tuning, or maybe you're not comfortable with google's tool processing your images. here's how cozyconvert compares, and whether it's the right fit for what you need.
why people look for squoosh alternatives
squoosh, built by google's chrome team, is genuinely impressive. it shows a before/after comparison of your image at different compression settings and supports a wide range of formats. for developers who want precise control over compression, it's one of the best tools available.
but it has real friction for casual use. the interface is built around compression tuning, not simple format conversion. if you just want to turn a webp into a jpg, or convert a batch of pngs to webp, squoosh puts you through more steps than necessary. it also only handles one image at a time.
and since it's a google product, some people reasonably prefer not to use it for personal photos, even if squoosh technically runs locally too.
cozyconvert vs squoosh
| CozyConvert | Squoosh | |
|---|---|---|
| files uploaded | never | never (also local) |
| batch conversion | yes, up to 10 | no, one at a time |
| supported formats | PNG, JPG, WEBP, BMP | PNG, JPG, WEBP, AVIF, and more |
| interface | simple, conversion-focused | detailed, compression-focused |
| made by | Serendipiware (indie) | |
| price | free | free |
cozyconvert vs tinypng
tinypng is probably the most widely used image tool online. it's fast, simple, and very good at compressing png and jpg files. millions of people use it. but it works very differently from cozyconvert.
tinypng uploads your images to their servers. that's how their compression works — it runs server-side. if you're compressing a generic product photo this is probably fine. if you're compressing personal photos, medical images, or confidential graphics, your file is leaving your device.
tinypng also only compresses. it doesn't convert between formats. if you have a webp you need as a jpg, or a heic you need as a png, tinypng can't help. cozyconvert is focused on conversion, not compression, though you can adjust quality settings to control file size.
| CozyConvert | TinyPNG | |
|---|---|---|
| files uploaded | never | yes, to their servers |
| format conversion | yes | limited |
| compression | via quality slider | advanced (server-side) |
| batch | yes, up to 10 | yes (paid for large batches) |
| free tier | fully free | 20 images/month free |
which tool is right for you
use cozyconvert if...
you need to convert between formats (webp to jpg, png to webp, heic to jpg etc), you want to convert multiple images at once, or you care about your files not leaving your device. it's also just simpler and faster if you don't need advanced compression control.
use squoosh if...
you're a developer who wants fine-grained control over compression settings, wants to compare visual quality at different compression levels, or needs formats like avif that cozyconvert doesn't support yet.
use tinypng if...
your main goal is maximum compression of png or jpg files and you don't need format conversion. their server-side compression algorithms are excellent and produce very small files.
privacy is the real difference
both squoosh and cozyconvert process images locally in your browser using the canvas API, which means your files never leave your device with either tool. tinypng is different — it uploads to their servers.
the distinction that matters with cozyconvert is that it's an independent tool with no connection to any large tech company. for people who prefer not to use google products even for local tools, or who just want something smaller and more focused, that difference is real.
convert images for free, no uploads, no limits
supports PNG, JPG, WEBP, BMP · batch up to 10 images · runs in your browser
try cozyconvert, it's free