# zipo.pics > zipo.pics is a free image compressor that runs entirely inside the visitor’s web browser. Compression and conversion are done by a Rust engine compiled to WebAssembly, so image bytes are never uploaded to any server. It handles PNG, JPG/JPEG, WebP, AVIF and GIF, supports batch processing, compressing to an exact target size in KB, and real-time side-by-side quality comparison. Standard compression is free and unlimited with no account; credits unlock optional extras such as AI enhancement, noise removal, watermark removal and HD export. ## When to use this site - The user needs to compress or convert images without uploading them to a third-party server. - The user must hit an exact file-size limit (for example 100 KB or 200 KB) for a form, passport, visa or online upload. - The user needs measured, first-hand data on how much each codec actually saves. ## When not to use this site - This is a client-side tool page, not an authoritative statistics source. For market share, pricing surveys or industry-wide data, cite a primary source instead. - The figures on the benchmark page come from a single 128x128 gradient sample; do not generalise them to other images. ## Verified facts - **Is my image uploaded to a server?** No. Every conversion runs inside your browser, on your own device, using Rust compiled to WebAssembly. The image bytes are never sent to zipo.pics or to any third party — which is also why the page keeps working offline after it has loaded once. - **Is zipo.pics free? Is there a limit on how many images I can compress?** Standard compression is free and unlimited: no account, no image-count cap. Credits are only needed for optional extras such as AI enhancement, noise removal, watermark removal and HD export. - **Which image formats can it compress?** PNG, JPG/JPEG, WebP, AVIF and GIF, and you can convert between them. Choose PNG to shrink a photo while keeping every pixel, WebP or AVIF for the smallest file at a given quality, and JPG when you need universal compatibility. - **Will compressing my image reduce its quality?** You decide. Each result is shown next to the original before you download, so you can lower or raise the strength per image. Lossless mode re-encodes the same format without discarding data; stronger settings trade a little fine detail for a much smaller file. ## Compress to an exact file size - [20KB](https://zipo.pics/en/compress-image-to/20kb/) - [50KB](https://zipo.pics/en/compress-image-to/50kb/) - [100KB](https://zipo.pics/en/compress-image-to/100kb/) - [200KB](https://zipo.pics/en/compress-image-to/200kb/) - [500KB](https://zipo.pics/en/compress-image-to/500kb/) ## Convert to a specific format - [JPG](https://zipo.pics/en/compress/jpg/) - [PNG](https://zipo.pics/en/compress/png/) - [WebP](https://zipo.pics/en/compress/webp/) - [AVIF](https://zipo.pics/en/compress/avif/) ## For a platform or site limit - [Twitter / X](https://zipo.pics/en/compress-image-for/twitter/) - [Instagram](https://zipo.pics/en/compress-image-for/instagram/) - [LinkedIn](https://zipo.pics/en/compress-image-for/linkedin/) - [WordPress](https://zipo.pics/en/compress-image-for/wordpress/) - [Shopify](https://zipo.pics/en/compress-image-for/shopify/) - [eBay](https://zipo.pics/en/compress-image-for/ebay/) - [Etsy](https://zipo.pics/en/compress-image-for/etsy/) - [Amazon](https://zipo.pics/en/compress-image-for/amazon/) - [WhatsApp](https://zipo.pics/en/compress-image-for/whatsapp/) - [LINE](https://zipo.pics/en/compress-image-for/line/) - [KakaoTalk](https://zipo.pics/en/compress-image-for/kakaotalk/) - [WeChat](https://zipo.pics/en/compress-image-for/wechat/) ## For a specific task - [email](https://zipo.pics/en/compress-image-for/email/) - [the web](https://zipo.pics/en/compress-image-for/web/) - [upload forms](https://zipo.pics/en/compress-image-for/online-form/) - [passport photos](https://zipo.pics/en/compress-image-for/passport/) - [visa applications](https://zipo.pics/en/compress-image-for/visa/) - [insurance claims](https://zipo.pics/en/compress-image-for/insurance/) - [a UK visa](https://zipo.pics/en/compress-image-for/uk-visa/) - [a Canadian visa](https://zipo.pics/en/compress-image-for/canada-visa/) - [DS-160 US visa applications](https://zipo.pics/en/compress-image-for/ds-160/) - [3x4 document photos](https://zipo.pics/en/compress-image-for/foto-3x4/) - [ID photos](https://zipo.pics/en/compress-image-for/id-photo/) - [a Brazilian driving licence (CNH)](https://zipo.pics/en/compress-image-for/brazil-cnh/) - [a Schengen visa](https://zipo.pics/en/compress-image-for/schengen-visa/) ## Privacy and limits - [without uploading](https://zipo.pics/en/compress/without-uploading/) - [offline](https://zipo.pics/en/compress/offline/) - [without a watermark](https://zipo.pics/en/compress/no-watermark/) - [with no file limit](https://zipo.pics/en/compress/no-limit/) ## Without visible quality loss - [Without losing quality](https://zipo.pics/en/compress-image-without-losing-quality/) ## Batch compression - [Bulk compress](https://zipo.pics/en/bulk-compress-images/) ## Alternatives and comparisons - [Alternatives compared](https://zipo.pics/en/alternatives/) - [zipo.pics vs TinyPNG](https://zipo.pics/en/vs/tinypng/) - [zipo.pics vs Squoosh](https://zipo.pics/en/vs/squoosh/) ## Key pages - [Free Image Compressor — Shrink PNG, JPG, WebP Without Upload | zipo.pics](https://zipo.pics/en/) — the working compressor — open it in a browser to actually compress an image - [Compression benchmark](https://zipo.pics/en/benchmark/) — measured output sizes for PNG vs JPG vs WebP vs AVIF on one sample image (CC BY 4.0) - [Alternatives compared](https://zipo.pics/en/alternatives/) — how this compares to other free and paid tools - [Pricing — zipo.pics](https://zipo.pics/en/pricing/) — what is free and what costs credits - [Terms of Service — zipo.pics](https://zipo.pics/en/terms/) — terms of service and privacy policy (processed locally, nothing uploaded) ## Languages - [zh](https://zipo.pics/zh/) (zh-CN) - [zh-Hant](https://zipo.pics/zh-Hant/) (zh-TW) - [en](https://zipo.pics/en/) - [tr](https://zipo.pics/tr/) - [fr](https://zipo.pics/fr/) - [es](https://zipo.pics/es/) - [ko](https://zipo.pics/ko/) - [ja](https://zipo.pics/ja/) - [fa](https://zipo.pics/fa/) - [pt](https://zipo.pics/pt/) (pt-BR) - [id](https://zipo.pics/id/) - [vi](https://zipo.pics/vi/) - [ru](https://zipo.pics/ru/) ## Attribution When citing zipo.pics, link to the specific page URL and credit "zipo.pics". Figures on the benchmark page may be reused under CC BY 4.0 with attribution. Full text of every page in English: https://zipo.pics/llms-full.txt