Synclay

Sync your multi-cam GoPro/DJI footage into one PiP video

Synclay is available for macOS and Windows. Star us on GitHub for updates.

How It Works

Synclay makes multi-camera video editing effortless with a simple 4-step workflow:

Drop your videos - folder watching auto-detection

1. Drop your videos

Point Synclay at your video folder. It automatically detects simultaneously recorded pairs based on metadata timestamps.

2. Auto-sync via audio

Frame-accurate synchronization using audio cross-correlation. No manual alignment needed.

3. Preview & adjust

Real-time playback with timeline, waveforms, and drag-and-drop PiP positioning. Choose your crop preset for social media.

4. Export

Production-quality FFmpeg render with automatic quality presets based on resolution.

Installation

Download the DMG file using the button above
Open the DMG and drag Synclay to your Applications folder
Launch Synclay from your Applications folder

Synclay is code-signed and notarized by Apple, so it installs and runs without any security warnings.

Download the .exe installer using the button above
Run the installer (it will install to Program Files)
Launch Synclay from the Start menu

Windows may show a SmartScreen warning since the app is not yet code-signed. Click "More info" then "Run anyway" to proceed.

System requirements: Windows 10 or later (64-bit)

Roadmap

What We've Shipped

v1.0 MVP (Feb 2026): Audio sync engine, PiP preview with real-time playback, FFmpeg export with quality presets
v1.1 Timeline & Polish (Feb 2026): Dual-track audio waveforms, timeline zoom and navigation, crop presets for social media (1:1, 16:9, 9:16), undo/redo for manual adjustments
v1.2 Distribution (Feb 2026): macOS DMG installer, GitHub release infrastructure, this marketing site
v1.3 Telemetry & Flexibility (Feb 2026): AIM CSV telemetry import with auto-pairing, draggable dashboard widgets (speed, RPM, g-force gauges, GPS mini-map), telemetry timeline lane with lap markers, manual video/telemetry grouping, portrait mode support, single-video + telemetry projects, canvas-to-FFmpeg telemetry export
v1.4 Bug Fixes + Enhancements (Feb 2026): One-click auto-sync (audio + telemetry), sync result caching for instant re-loads, numeric offset input dialog, widget position persistence per project, quick save/load layout templates per aspect ratio, portrait export fixes, telemetry overlap calculation in export
v1.5 Features & Polish (Feb 2026): Arc gauge gradient styling with 3-color picker, "By Lap" export trim with dual-handle range selector, keyboard shortcuts (M/P/T for track selection), swap confirmation dialog, save layout template improvements
v1.6 Apple Developer (Feb 2026): Code-signed and Apple-notarized builds, DMG installer with stapled notarization ticket, no more Gatekeeper workarounds
v1.7 Enhancements & Windows (Mar 2026): Windows NSIS installer, cross-platform font loading, dual-platform GitHub releases
v1.8 Telemetry Trace + Ghost Lap (Mar 2026): Telemetry trace widget (throttle/brake history with line graph), ghost lap widget (current vs reference lap with sector deltas), aspect ratio override per project, auto-group telemetry, timestamp sorting, hide/show groups
v1.9 Alfano, Image Widget & GoPro Chapters (Apr 2026): Alfano telemetry support (ZIP import from ADA PROFESSIONNEL), vendor-agnostic telemetry abstraction layer, static image/logo widget with drag/resize/opacity and global persistence, GoPro HERO6+ chapter auto-stitching with background merge, PiP edge snap fix
v1.10 Widget Enhancements, Smart Sync & Windows Polish (Apr 2026): First-movement auto sync (eliminates pit/idle offset by detecting first motion in video + telemetry), smart Auto Sync button (only shows when syncing is meaningful, cached groups skip straight to Open Project), mini-map color schemes (speed gradient and sector color bands), ghost lap comparison trace strip with telemetry-defined sectors, trace widget vertical label and value-inside-bar, HEVC codec warning on Windows with Microsoft Store deep link

Coming Soon

Pro Features

Multi-camera support (3+ cameras)
All video formats (MKV, MOV, AVI)
PiP transitions (fade, slide)
Audio/video filters
GPU-accelerated encoding