What formats does expi support?

expi supports a wide variety of video, audio, and image formats including MP4, MOV, AVI, MKV, MP3, WAV, JPG, PNG, and many more. If FFmpeg can handle it, expi can convert it.

Do I need an internet connection?

No! expi works completely offline, it just needs to do a verification every 2 days for license validation. Your files never leave your computer, ensuring complete privacy and security. No cloud uploads, no data tracking.

Is there a file size limit?

Nope! Convert files of any size. expi only uses your local computer's resources, so you're only limited by your available disk space and processing power.

What's included with my purchase?

Your one-time purchase includes the full desktop app for both macOS and Windows, 2 seats, unlimited conversions, all current features, and free updates for life. No subscriptions ever.

Can I try before I buy?

Absolutely! Download the free trial and test all features with no limitations. No credit card required, no account needed. The demo version will only limit the exporting resolution capabilities.

How fast are the conversions?

expi uses hardware acceleration and optimized algorithms to deliver conversions up to 5x faster than online tools. Speed depends on your hardware and file complexity.

Can I convert MP4 to MOV?

Yes! expi makes converting MP4 to MOV simple. Just drag your MP4 file into expi, select MOV as the output format, and export. All processing happens locally using FFmpeg, so your files stay on your computer and conversion is fast with hardware acceleration.

How do I convert MOV to MP4?

Converting MOV to MP4 is easy with expi. Open expi, add your MOV file, choose MP4 as the output format, and click export. expi uses FFmpeg under the hood to ensure high-quality conversions. You can also batch convert multiple MOV files to MP4 at once.

Is expi a FFmpeg GUI?

Yes! expi is a user-friendly graphical interface for FFmpeg. If you're looking for a FFmpeg GUI or FFmpeg desktop app, expi provides all FFmpeg capabilities through an intuitive interface. No command-line knowledge required - just drag, drop, and convert.

What video formats can I convert?

expi supports 200+ video formats including MP4, MOV, AVI, MKV, WebM, FLV, MPEG, and many more. You can convert between any supported formats - for example, convert AVI to MP4, MKV to MOV, or any other combination. All conversions use FFmpeg for reliable, high-quality results.

Desktop App for macOS & Windows

Meetexpi

Efficient, fast and private.
No subscription, all yours, Forever.
Rendering & Media conversions for everyone. Crafted by a human who cares.

Get a License

expi

Click to browse files

Supports video, audio, and image files

Download from YouTube

Quick Export Presets

Select a preset...

Output Location

Filename Pattern

Own expiForeverEternallyAlwaysFor all timeFor good

One purchase. Lifetime access. No subscriptions, no recurring fees. Because that's how software should work.

Individual License

2 seats included

$20

one-time

Get a License

Built for
agents and CLI

Install expi and start right away. CLI + MCP are bundled automatically, so your AI assistants and scripts can run conversions immediately.

You

Agent

expi convert ./video.mov --preset "YouTube" --json

Conversion complete. Output saved to ./video_youtube.mp4

Packed with features

From import to export, expi streamlines your media workflow with a beautiful, native interface.

Drag & Drop Simplicity

Simply drag your files into expi. It instantly recognizes video, audio, and image formats, ready for conversion. Or paste a YouTube URL to download videos directly—no browser needed.

One-Click Quick Export

Right-click any file in Finder or Explorer and export instantly. expi even detects image sequences automatically.

Professional Content Editor

Trim, crop, and color grade with ease. Add bumpers, extract thumbnails, manage audio tracks, and control every piece of metadata—from GPS to timecode—in one beautiful, non-destructive workflow.

Built-in Ease & Expert Control

Choose from curated presets for YouTube, Social Media, and Professional workflows, or dive deep with a specialized Job Editor for total control over every export parameter.

Built for
your workflow

expi is 2 years of thoughtfully crafted UX by a senior cinematic artist who had enough of lack luster solutions. expi lives on your computer. No internet required, no data uploaded, no subscriptions. Industry standard pipeline, for everyone. Also, big shoutout and thanks to the FFmpeg team.

100% Private

Your files never leave your computer. Process everything locally with complete privacy and security. No cloud, no tracking, no nonsense.

Lightning Fast

GPU acceleration and optimized algorithms deliver conversions faster than online tools. Powered by a custom FFMPEG library specifically made for expi.

Efficient Controls

Advanced settings for professionals, simple click and go for everyone else. The app adjusts to your skill level.

Wide array of Formats

Support for virtually every media format imaginable. From common MP4 and JPG to professional codecs like ProRes and RAW formats.

Content Editor

Built-in editor for trimming, cropping, color correction, and basic effects. No need for separate editing software for simple tasks.

Hardware Accelerated

Leverages your GPU and CPU for maximum performance. Native support for Apple Silicon, AMD, Vulkan (on Windows) and NVIDIA hardware acceleration.

What's
Coming Next

expi keeps evolving. Here's what I'm building for you next. Oh and by the way, all Free.

Completed
Windows Release
100%
Completed
OS Context Menu Quick Export
100%
Completed
Metadata Tool
100%
Completed
Localization
100%
In Development
Advanced Content Editor Features
45%
Planned
Frame.io integration
Planned
Added to Adobe pipelines
Planned
Cloud Storage Integration
Planned
AI Video Enhancement
Planned
Plugin Ecosystem
Planned
More to come!

All core updates are included with your one-time purchase. Major feature add-ons may be available separately.

Request a Feature

Frequently
Asked Questions

Everything you need to know about expi. Sorry, this is also for SEO..

Download
expi

Free trial available

macOS

Apple Silicon support

Download

Windows

Windows 10 & 11 compatible