About MacroKit

MacroKit provides free, browser-based tools precision-built for media editing. No uploads, no accounts, no nonsense.

Our Mission

We believe powerful media tools should be accessible to everyone. Our mission is to create high-quality, free online tools that work entirely in your browser, ensuring your files never leave your device.

What We Offer

MacroKit offers precision tools for video and image editing:

  • Video Splitter - Cut videos into clips with frame-accurate precision using fast mode for instant splitting or re-encoding for exact cuts
  • Video Converter - Convert between video formats including MP4, WebM, MOV, MKV, AVI, and more
  • Image Cropper - Crop images with pixel-perfect accuracy using preset aspect ratios or freeform selection
  • Audio Extractor - Extract audio tracks from video files in MP3, WAV, FLAC, AAC, or OGG format

Our Values

  • Privacy First: Your files are processed locally in your browser using WebAssembly. Nothing is uploaded to any server.
  • Free & Accessible: Our core tools are free to use with no watermarks or hidden limitations.
  • Quality: We use industry-standard tools like FFmpeg to ensure professional-grade results.
  • Simplicity: No account required. Just open the tool and start working.
  • Precision-Built: Every tool is engineered to work flawlessly with attention to detail.

Technology

MacroKit is built with modern web technologies including WebAssembly (WASM), which allows powerful processing directly in your browser. FFmpeg, the industry-standard media processing library, runs entirely client-side, giving you professional-quality results while your files stay on your device.

Unlike traditional online converters that upload your files to a remote server, MacroKit processes everything locally. This means faster results, no file size limits imposed by server bandwidth, and complete control over your data. The tools work offline once the page has loaded, and no internet connection is needed during processing.

Who Uses MacroKit

Our tools are designed for anyone who works with video and image files:

  • Content Creators — Split long recordings into clips for social media, convert between formats for different platforms, and extract audio for podcasts or voiceovers.
  • Educators & Students — Trim lecture recordings, convert video assignments into required formats, and crop screenshots for presentations.
  • Professionals — Quickly convert client deliverables between formats, crop images to exact dimensions, and extract audio tracks without installing desktop software.
  • Privacy-Conscious Users — Process sensitive media files without trusting a third-party server. Your files never leave your device.

Frequently Asked Questions

Is MacroKit really free?

Yes. All core tools — video splitting, video conversion, image cropping, and audio extraction — are completely free with no watermarks, no hidden fees, and no account required.

Do you store my files?

No. Every file is processed locally in your browser using WebAssembly. Nothing is uploaded to any server, and we have no access to your media files at any point.

What browsers are supported?

MacroKit works in all modern browsers that support WebAssembly, including Chrome, Firefox, Safari, and Edge. We recommend using the latest version for the best experience.

Get in Touch

Have questions, feedback, or suggestions? We'd love to hear from you! Visit our contact page to get in touch.