--- title: "Media Compression built for web professionals" url: "https://pixeltamp.com" description: "Rapid, hardware-accelerated media compressor for web developers, designers, and creators." --- # Media Compression built for web professionals Drop images, videos, or folders to compress, convert, and resize for the web, Git repositories, and multimodal AI workflows. Everything runs locally on your Mac with no cloud uploads, no tracking, and no terminal tools required. Free Coming Soon to the Mac App Store [View Documentation](/help) 100% In-Process (No Cloud) Non-Destructive Apple Silicon Native PixelTamp ![PixelTamp App Icon](/app-icon.webp) macOS ## App Screenshots Coming Soon PixelTamp is currently in final testing. Live interface previews will be published alongside the Mac App Store release. The PixelTamp Engine ## Engineered for speed and effect. A focused desktop utility instead of heavyweight editing suites or opaque cloud converters. ### 100% In-Process & Private Compression runs entirely on your Mac using native frameworks and embedded libraries. Files never leave your machine, and the app makes no network connections. No Network Calls100% On-Device ### Hardware Video Transcoding Uses AVFoundation and VideoToolbox for hardware H.264 encoding, automatically relocating the MOOV atom to the start of the file for instant web playback. H.264 FaststartHardware Acceleration ### Smart PNG Quantisation Quantises graphics down to compact 8-bit palettes using an RMSE perceptual check, falling back to lossless 24/32-bit Deflate whenever gradients or photos risk banding. ### EXIF Auto-Rotation Normalisation Applies EXIF rotation directly to the pixel grid before metadata is stripped, ensuring photos never display sideways in browsers. ### GIF Optimisation & MP4 Video Reduce multi-frame GIF palette sizes while preserving frame timing, or convert heavy animated GIFs into more efficient animated WebP or small, streamable MP4 videos. ### Non-Destructive by Default Original files are never overwritten unless explicitly configured. Compressed versions are saved alongside with a suffix, or routed to a dedicated output folder. ### Opinionated Web Presets Three calibrated presets (Tamped, Lossless, Aggressive) handle colour tables, chroma subsampling, and bitrate targets without manual codec configuration. No technical hurdles for users. ### Recursive Batch Processing Drag single files, groups, or nested folders. PixelTamp discovers all supported media and processes the queue across available CPU cores. Workflows & Use Cases ## Engineered for demanding workflows. From pre-prompt AI staging to lean Git repositories, PixelTamp handles media preparation without leaving your Mac. Compress Before You Prompt ### AI & Multimodal Vision Staging Multimodal models charge API tokens per image tile. Feeding uncompressed 48MP photos burns token budgets and transmits private GPS data. PixelTamp resizes to optimal vision dimensions and strips metadata locally in milliseconds. - Up to 80% reduction in vision API token consumption - Strips location and camera serials before cloud upload - Avoids context timeouts and payload size limits [Read AI preparation guide](/help/ai-media-preparation) Pre-Commit Media Diet ### Git Repositories & CI/CD Pipelines Committing uncompressed media creates permanent repository bloat in Git packfiles. Running image decoders inside CI builds burns paid runner minutes. PixelTamp optimises assets locally on your Mac before they are staged in Git. - Prevents Git repository bloat without Git LFS - Eliminates heavy image transformation steps in CI - Speeds up clone and deployment times for teams [Read developer workflows guide](/help/web-and-developer-workflows) Instant Video Streaming ### Bug Reports & Ticket Attachments macOS screen recordings saved as .mov files routinely exceed 80MB and keep index headers at the end of the container. PixelTamp transcodes them to web-optimised H.264 MP4 with faststart playback under GitHub and Linear size limits. - Converts 80MB+ captures to under 5MB MP4 files - Relocates MOOV atom for instant browser streaming - Fits within GitHub, Linear, and Slack upload limits [Explore screen recording workflow](/help/web-and-developer-workflows#3-screen-recordings-for-issue-trackers--pull-requests) 100% On-Device Processing ### Confidential Client Media & NDAs Browser-based compression services transmit client files to remote servers, violating strict non-disclosure agreements, GDPR, and enterprise compliance. PixelTamp requests zero network entitlements and processes media entirely in-process. - Zero network calls or remote server dependencies - Full compliance with enterprise NDAs and confidentiality - No file size caps, queue limits, or subscription paywalls [Review privacy architecture](/help/questions-and-answers#does-pixeltamp-upload-my-files-or-images-to-any-cloud-server) Visual Proof ## Assess the compression quality for yourself. Slide back and forth to compare camera-quality JPEGs with PixelTamp's optimised output at identical resolutions. Massive byte savings with virtually indistinguishable visual fidelity. These are real-world examples of PixelTamp's compression. Not simulations. Mountain(Landscape)Dandelion(Macro Detail)Beach(Coastal Water)Sunset(Golden Hour) Tamped\-78.8%Lossless\-35.5%Aggressive\-86.4%Aggressive (WebP)\-92.3% ![Mountain - Original JPEG](/comparisons/mountain.jpg) ![Mountain - PixelTamp JPEG](/comparisons/mountain_tamped.jpg) Loading preview... Original JPEG822 KB PixelTamp JPEG174 KB(-78.8%) 1920 × 1080•16:9Drag to pan Fit100% All samples exported from Capture One as 95% quality JPEGs at target resolution, to reflect real-world high quality photography. Switch to 100% zoom and drag the image to inspect compression artefacts at 1:1 pixel scale. Our Presets ## Three presets for everyday web workflows Even when CDNs generate responsive derivatives on the fly, uploading hundreds of 20 MB raw camera exports wastes storage and CDN usage will add up. PixelTamp makes it so easy to optimise source files before upload. Instead of dozens of sliders and codec settings, three presets cover every production need, making it straightforward to hand to colleagues and clients alike. | Feature / Format | Tamped Default · Optimal balance | Lossless Max fidelity · 0% pixel loss | Aggressive Max byte reduction | | --- | --- | --- | --- | | JPEG / JPG | Very high quality | Visually lossless · Metadata stripped | Good quality | | PNG | Adaptive 8-bit Quantizer · Truecolour fallback | Full 24/32-bit lossless deflate stream | 8-bit Quantizer (256 cols) · Floyd-Steinberg dithering | | WebP | Very high quality | Visually lossless | Good quality | | Video (H.264 & AAC) | High quality · 192 kbps AAC · faststart | Very high quality · 192 kbps AAC · faststart | Good quality · 128 kbps AAC · faststart | | Animated GIF | 256-colour palette reduction or MP4 transcode | Preserve frame metadata & timing | 128-colour palette reduction | | Resolution & Sizing | Independent constraints for images and videos (common sizes) · Custom presets · Never upscales | | Best Suited For | Web hero images, blogs, product sites | Design system icons, UI mockups, logos | Email newsletters, background assets, bandwidth-limited targets | ### Clean Source Assets CDNs can resize images, but uncompressed camera files still slow down CMS uploads and drive up storage. PixelTamp trims master files before they leave your Mac. ### Simple Client Handoff Avoid confusing quality sliders. Developers and designers can give PixelTamp to content editors for consistent, reliable media preparation. System Compatibility ## macOS Specifications Operating System macOS 26 or later Optimised for macOS 26+ Hardware Architecture Apple Silicon Native ARM64 architecture External Dependencies None (100% Self-Contained) No Homebrew, Python, or CLI tools ![PixelTamp App Icon](/app-icon.webp) ## Ready to optimise your web media? Fast, private media compression designed specifically for macOS. Free Coming Soon to the Mac App Store [Read Documentation](/help)