Opinionated media compression
crafted for the web.
Drop images, videos, or entire folders to instantly compress, convert, and resize for modern web standards. 100% in-process with zero cloud uploads, zero telemetry, and zero terminal prerequisites.
App Screenshots Coming Soon
PixelTamp is currently in final testing. Live interface previews will be published alongside the Mac App Store release.
Built for developers and designers who value speed and privacy.
PixelTamp bridges the gap between bloated editing suites and opaque cloud conversion services.
100% In-Process & Private
Every byte is compressed locally on your Mac using native Apple frameworks and embedded libraries. Zero cloud uploads, zero telemetry, and zero network calls.
Hardware Video Transcoding
Harness Apple's AVFoundation and VideoToolbox for blazingly fast H.264 encoding with faststart MOOV atom relocation for instant web streaming and playback.
8-Bit PNG Quantisation
Embedded Quantizer engine uses Floyd-Steinberg error diffusion dithering to reduce heavy 24/32-bit PNGs down to compact 8-bit palettes with transparent alpha.
EXIF Auto-Rotation Normalisation
Photos with EXIF orientation tags are physically baked into upright pixel grids prior to compression, guaranteeing they never display sideways after metadata stripping.
GIF Optimisation & MP4 Video
Optimise multi-frame GIFs with palette reduction and frame timing preservation, or automatically convert bulky animations into compact, streamable MP4 videos.
Strictly Non-Destructive
Your original high-resolution media is sacred. PixelTamp never overwrites source files, saving copies alongside originals with a customizable suffix or designated folder.
Opinionated Web Presets
Eliminate encoding fatigue. Tuned presets (Tamped, Lossless, Aggressive) configure colour tables, chroma subsampling, and bitrate constraints automatically.
Recursive Batch Processing
Drag single files, multi-file selections, or complete folder trees. PixelTamp recursively discovers all media and processes them concurrently across all CPU cores.
Inspect the compression quality.
Slide back and forth to compare Capture One 95% quality JPEG exports with PixelTamp's optimised output at identical resolutions. Massive byte savings with virtually indistinguishable visual fidelity.
All samples exported from Capture One as 95% quality JPEGs at target resolution. Switch to 100% zoom and drag the image to inspect compression artifacts at 1:1 pixel scale.
Three tuned presets. Zero guesswork.
Modern CDNs and CMS platforms generate responsive variants automatically, but uploading unoptimised 20 MB camera files still inflates cloud storage bills and slows down build pipelines. PixelTamp sanitises and tamps those raw source assets before they ever leave your Mac.
By replacing obscure encoding dials and custom matrices with three battle-tested presets, agencies and developers can comfortably hand PixelTamp to marketing teams, clients, and content creators without fear of confusion.
| Feature / Format | Tamped Default · Optimal balance | Lossless Max fidelity · 0% pixel loss | Aggressive Max byte reduction |
|---|---|---|---|
| JPEG / JPG | 48% quality target · In-process ImageIO | Visually lossless · Metadata stripped | 35% quality target · Maximum compression |
| PNG | 8-bit Quantizer (256 cols) · Floyd-Steinberg dithering | Full 24/32-bit lossless Deflate stream | 8-bit Quantizer (128 cols) · Aggressive palette |
| WebP | 85% lossy WebP via embedded libwebp | 100% mathematical lossless WebP | 65% compact lossy WebP |
| Video (H.264 & AAC) | 0.70 Quality score · 192 kbps AAC · faststart | 0.90 Quality score · 192 kbps AAC · faststart | 0.50 Quality score · 128 kbps AAC · faststart |
| Resolution & Sizing | Independent constraints for images and videos (original and common sizes) · Never upscales | ||
| Animated GIF | 256-colour palette reduction or MP4 transcode | Preserve frame metadata & timing | 128-colour palette reduction |
| Best Suited For | Web hero images, blogs, product sites | Design system icons, UI mockups, logos | Email newsletters, bandwidth-limited targets |
Sanitise Raw Source Assets
While image CDNs handle frontend sizing, uncompressed camera uploads silently consume gigabytes of storage and bandwidth. PixelTamp cleanses master files at the root.
Frictionless Team Handoff
No codec confusion or encoding rabbit holes. Agencies and developers can share PixelTamp directly with marketing teams and clients for error-free asset prep.
* Note: Specific encoding parameters and quality targets are occasionally tuned and may vary from the characteristics listed above.
macOS Specifications
Ready to tamp your web assets?
Experience seamless, private, and ultra-fast media compression built directly for macOS.