Every GoPro you own already knows how to fix your shaky footage. GoPro charges $99.99 a year to unlock it. Inside every GoPro, Sony, DJI, and Insta360 is a gyroscope. It records the exact angle and rotation of every shake, 400 times per second. That data gets embedded inside your video file automatically. It has been there every time you filmed. GoPro reads that data through a tool called ReelSteady. They bought the company in 2020, sold it as a $99.99 one-time purchase inside GoPro Player, then in 2024 renamed it HyperSmooth Pro and folded it into their $99.99 a year Premium+ subscription. GoPro cameras only. Cancel your subscription and it stops working. There is a free tool that reads the same gyroscope data. It works on every camera. It is called Gyroflow. It started in 2020 as a Python project by an engineering student named Elvin Chen. Then a developer named Adrian Eddy rewrote the whole thing in Rust, built the UI, the GPU pipeline, the rolling shutter correction, and the plugins for Premiere, After Effects, Resolve, and Final Cut Pro. GPL-3.0 licensed. Here is what happens when you open Gyroflow. You load your shaky video. Gyroflow reads the gyroscope data embedded inside the file. It knows the exact motion of every shake, not a guess from pixels, the actual recorded movement from the sensor. Then it reverses each shake, frame by frame. Every other stabilizer on Earth guesses. Premiere Warp Stabilizer looks at the pixels and tries to reverse-engineer the motion. iMovie does the same. YouTube stabilization does the same. They all crop your frame to hide the shake they cannot fully remove. Gyroflow does not guess. It reads the truth. An FPV pilot ran a head-to-head test on the same 4 minute 41 second clip. Gyroflow finished in 3 minutes. GoPro's paid tool took 15. Same footage. Same stability. Five times faster. Zero dollars. It works with every prosumer camera on the market. GoPro Hero 5 through 13. Every Sony mirrorless from the a7 IV to the FX9. DJI Avata, Action, Neo, and every O3 and O4 Air Unit. Every Insta360 from the OneR to the Ace Pro. Blackmagic RAW. RED V-Raptor and Komodo. Canon C50, C80, C400, R6 Mark III, R5 Mark II. Runcam and Hawkeye FPV cams. Betaflight blackbox. ArduPilot logs. On Sony bodies you can stack Gyroflow on top of the in-camera IBIS and EIS. Nothing else can do that. Rolling shutter correction. Horizon leveling. Lens distortion fixes. GPU accelerated rendering on DirectX, Metal, Vulkan, and OpenGL. Output to x264, x265, ProRes, DNxHD, and 32-bit float OpenEXR. Real-time preview with sub-pixel precision. Windows, Mac, Linux, Android, iOS. On the Microsoft Store, Mac App Store, and Google Play. 9,373 stars on GitHub. 1.23 million downloads. Last update pushed yesterday. Every action camera you own already knows how to fix itself. Gyroflow simply asks it. (Link in the comments)