BIRME is a free online bulk image resizer that runs in the browser. It resizes, crops, renames, watermarks, and converts JPG, PNG, WebP, and AVIF files without uploading them, and can export results as a ZIP.
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YOGA Image Optimizer is a free tool to convert and optimize JPEG, PNG and WebP image files. Users drag and drop images and click Optimize. The project states that optimization can be slow and may require a lot of RAM, especially for JPEGs.
TinyJPG reduces the file size of JPEG images by analyzing each uploaded image and applying an optimal JPEG encoding strategy. Unnecessary metadata is stripped, and the API resizes images with smart cropping. The site states that images are compressed by 40 to 60 percent.
Pingo is an experimental lossless and lossy image optimizer for PNG, JPEG, WebP and APNG files, designed to transform image data for the Web. It runs from the command line with optimization levels and quality settings. Its license permits free use for exclusive private usage only, and does not permit repackaging, redistributing, downloading, reselling or reusing it through other services, even for non-commercial purposes.
Raw.pics.io is an in-browser viewer and converter for RAW image formats including CR2, NEF, ARW, ORF, PEF, RAF and DNG. It converts and edits RAW, PDF and JPG files into JPEG, PNG and other formats, with resizing, compression and pixel size changes available. All processing happens in the browser, and the service is free for the first five conversions without registration.
Ziziyi is a browser-based office editor for opening, viewing and editing DOCX, XLSX and PPTX files. It states that no upload or login is required and that documents stay private, and files can be dragged and dropped or selected through a browser extension.
GetMarkdown converts files such as PDF, Word, PowerPoint, Excel, HTML, images and audio to Markdown. Free conversions run locally in the browser with no account, supporting up to 8 files per batch at 10 MB each. An optional paid Pro tier performs server-side PDF processing for complex layouts and scanned PDFs.
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YOGA Image Optimizer is a free tool to convert and optimize JPEG, PNG and WebP image files. Users drag and drop images and click Optimize. The project states that optimization can be slow and may require a lot of RAM, especially for JPEGs.
TinyJPG reduces the file size of JPEG images by analyzing each uploaded image and applying an optimal JPEG encoding strategy. Unnecessary metadata is stripped, and the API resizes images with smart cropping. The site states that images are compressed by 40 to 60 percent.
Pingo is an experimental lossless and lossy image optimizer for PNG, JPEG, WebP and APNG files, designed to transform image data for the Web. It runs from the command line with optimization levels and quality settings. Its license permits free use for exclusive private usage only, and does not permit repackaging, redistributing, downloading, reselling or reusing it through other services, even for non-commercial purposes.
Raw.pics.io is an in-browser viewer and converter for RAW image formats including CR2, NEF, ARW, ORF, PEF, RAF and DNG. It converts and edits RAW, PDF and JPG files into JPEG, PNG and other formats, with resizing, compression and pixel size changes available. All processing happens in the browser, and the service is free for the first five conversions without registration.
Ziziyi is a browser-based office editor for opening, viewing and editing DOCX, XLSX and PPTX files. It states that no upload or login is required and that documents stay private, and files can be dragged and dropped or selected through a browser extension.
GetMarkdown converts files such as PDF, Word, PowerPoint, Excel, HTML, images and audio to Markdown. Free conversions run locally in the browser with no account, supporting up to 8 files per batch at 10 MB each. An optional paid Pro tier performs server-side PDF processing for complex layouts and scanned PDFs.
