TinyPNG
TinyPNG (by Tinify) is a free image optimization service built for developers and designers. It uses smart lossy compression to reduce JPEG, PNG, WebP, and AVIF file sizes by up to 80% with no visible quality loss. That means faster load times, better SEO, and lower bandwidth.
You can compress, convert, and resize images via a clean web interface or integrate it into your workflow with the API. SDKs are available for Python, Node.js, PHP, Java, Ruby, and .NET. WordPress plugin included, plus plenty of community-driven integrations.
No tuning, no noise, Tinify just works. Whether you're optimizing a handful of images or processing millions, it scales effortlessly. All plans include a generous free tier, and support is quick when you need it.
George the panda 🐼 approves.
Learn more
XnConvert
XnConvert is a robust, swift, and free cross-platform batch image converter that enables users to streamline the editing process for their photo collections. Users can effortlessly rotate, convert, and compress their images while applying over 80 different actions such as resizing, cropping, color adjustments, and various filters. It supports a wide array of common image and graphic formats, including JPEG, TIFF, PNG, GIF, WebP, PSD, JPEG2000, JPEG-XL, OpenEXR, camera RAW, HEIC, PDF, DNG, and CR2. Additionally, users can save and reuse their presets for future batch conversions, enhancing efficiency. XnConvert is compatible with multiple platforms, offering versions for Windows, Mac, and Linux in both 32-bit and 64-bit formats. This versatile tool also boasts multilingual support, with over 20 different translations available. Featuring an intuitive interface, XnConvert provides convenient drag-and-drop functionality, making it user-friendly. With compatibility for more than 500 formats and the ability to export to around 70 different file types, XnConvert truly stands out as a powerful solution for image processing.
Learn more
MConverter
MConverter is an online file converter for most video, audio, image, e-book, document and archive formats. It makes it very easy to convert multiple files in bulk. You can select files from anywhere, even the clipboard with Ctrl+V. Once a conversion is complete, you can save its output files to any folder on your device.
MConverter lets you compress PDF files in bulk. Pick between basic, strong, and extreme compression: up to 90% reduction in size, depending on the file.
MConverter can analyze files with missing extensions, try to guess their real formats and offer to convert them to other formats you can already use on your device.
Maximum file size, supported by MConverter: 10 GB.
Supported formats: 3g2, 3gp, 7z, aac, ac3, ai, aif, aiff, amv, arw, avi, avif, azw, azw3, bmp, bz2, cab, cbr, cbz, cr2, cr3, cso, csv, deskthemepack, dng, doc, docx, drawio, epub, fb2, flac, flv, gif, gz, heic, htm, html, ico, iso, jar, jpeg, jpg, json, jxl (jpeg xl), m4a, mcaddon, mcpack, mctemplate, mcworld, md (markdown), mid, mkv, mobi, mov, mp3, mp4, mpeg, mpg, mpo, mxf, nef, odp, ods, odt, ogg, opus, pdf, pdf/a, png, ppm, pps, ppsx, ppt, pptx, psd, raf, rar, rtf, rw2, sami, smi, srt, sub, svg, tar, tbz2, tgz, themepack, tif, tiff, tini, tsv (tab), txt, txz, vob, wav, webm, webp, wma, wmv, xcf, xls, xlsx, xz, zip
Learn more