A image optimizer for bulk workflows. Drag in multiple images, resize them, adjust compression, convert formats, crop with draggable handles, preview before/after with a true slider, and export optimized files ready for Instagram, TikTok, YouTube, Facebook or LinkedIn.
Use the left control panel to load images, choose output settings, adjust the crop box with handles, then process with clear progress feedback.
Drag the slider on each image to compare original vs optimized.
Load demo images or choose your own files. After processing, each image gets one before/after slider card with file savings and output details.
Most "free online" image compressors — TinyPNG, ILoveIMG, Compressor.io, imagecompressor.com — upload your images to a remote server for processing. This raises privacy, security, and performance concerns: your files travel across the internet, sit on third-party servers, and are subject to rate limits. Prescosoft Image Optimizer works differently.
Your images are processed entirely by your browser's Canvas API. Not a single byte leaves your device. Safe for confidential photos, business documents, and personal images.
No upload/download round trips. Bulk compress dozens of images instantly using your device's GPU-accelerated Canvas. No waiting for a remote server to finish.
TinyPNG limits free users to 20 images per upload. Compressor.io caps quality on free tier. Prescosoft has no file count, no size limit, and no quality paywall.
Unlike desktop tools (ImageMagick) or platform-specific solutions, this tool runs in any modern browser — Chromebooks, iPads, Android tablets, Windows, Mac, and Linux.
Convert JPG/PNG to WebP for 25–35% smaller files at the same quality. Optimize for Core Web Vitals, LCP scores, and faster page loads without sacrificing visual fidelity.
Everything you need to know about compressing, resizing, and converting images online without uploading them.
Most online image compressors like TinyPNG, ILoveIMG, and Compressor.io upload your files to a remote server for processing. Prescosoft Image Optimizer processes everything locally in your browser using the Canvas API — your images are never uploaded to any server. This makes it safe for sensitive photos, confidential business images, and personal documents.
Lossy compression (JPG, WebP) reduces file size by discarding some image data, which can slightly reduce quality at lower settings. At 80–100% quality, most images look identical to the original while being 30–60% smaller. The before/after comparison slider in this tool lets you verify quality is preserved before downloading. PNG uses lossless compression, which preserves every pixel.
Yes. Prescosoft Image Optimizer converts between JPG, PNG, and WebP formats. WebP typically produces 25–35% smaller files than JPG at the same visual quality, making it ideal for web performance and Core Web Vitals optimization. Select "WebP" in the Output Format dropdown and process your images.
Yes. Drag and drop or select multiple images at once. The tool processes all images in bulk with the same compression, resize, and format settings. Unlike TinyPNG's 20-image free limit, Prescosoft has no file count limit — compress as many images as you need.
Select a crop preset from the dropdown: Instagram Square (1:1), Instagram Portrait (4:5), Story/Reel/TikTok (9:16), YouTube/Hero (16:9), or Facebook/LinkedIn Share (1.91:1). Then drag the crop box or its corner handles to position the crop area precisely. The crop preview updates in real time.
Yes. Unlike TinyPNG (which uploads files and limits you to 20 images), Prescosoft processes everything locally with no file limits. Unlike Squoosh (which handles one image at a time), Prescosoft supports bulk processing with crop presets, format conversion, and before/after comparison — all in one tool. No account or signup required.
