AW EDID Editor is a free Mac utility from Analog Way that lets you open, inspect, modify, and save EDID binary files — the tiny data structures monitors and displays use to advertise their capabilities to a connected computer or video processor.
What is AW EDID Editor?
AW EDID Editor is a dedicated EDID (Extended Display Identification Data) authoring tool for macOS, published by Analog Way, a professional AV hardware manufacturer. EDID is the handshake language your Mac speaks with every display it drives: resolution limits, refresh rates, colour gamut, audio capabilities, and more are all encoded in a compact binary structure. When that structure is wrong — whether from a cheap cable, a custom video wall tile, or a display that ships with an overly conservative factory EDID — you hit a wall of resolution mismatches, missing refresh rates, or blank screens. AW EDID Editor gives you a human-readable window into that binary and the power to fix it.
What does AW EDID Editor do best?
The app shines brightest when you need to craft or repair an EDID from scratch rather than just glance at what a display reports. It handles not only the baseline EDID 1.x block structure but also DisplayID — the newer, more flexible extension used by high-end monitors and tiled display systems — and the CEA-861-G extension that governs HDMI audio and video data blocks. That combination of format support is unusual; most free EDID tools either ignore DisplayID entirely or treat CEA extensions as opaque hex blobs.
In practice I find it most useful in three situations: diagnosing why a rental LED processor refuses to negotiate 4K60 with a Mac Mini, generating a custom EDID to feed into an AV matrix so a downstream projector doesn't drag the signal down to 1080p, and editing timing descriptors on a display whose factory EDID omits a refresh rate the panel hardware can actually handle.
- Structured field editor — every EDID field is labelled and editable; no manual hex arithmetic.
- DisplayID support — handles tiled display topologies and high-framerate timing blocks that classic EDID 1.x cannot express.
- CEA-861-G extensions — edit audio data blocks, speaker allocation, HDMI vendor-specific blocks, and colorimetry descriptors.
- Binary round-trip — open a raw .bin file, edit, save; the checksum is recalculated for you.
- Analog Way pedigree — built by people who make video processors that live or die by correct EDID negotiation.
Is AW EDID Editor free?
Yes — AW EDID Editor is free to download directly from Analog Way's website, with no account registration required and no feature paywall. It is also available as a Homebrew Cask (brew install --cask aw-edid-editor) for those who prefer reproducible setups. Analog Way makes its money on hardware; this tool is part of their support ecosystem rather than a revenue line.
Who should use AW EDID Editor?
The honest answer is that this is a specialist tool — it is not something a typical Mac user will ever need. The people who reach for it regularly are AV systems integrators, broadcast engineers, display calibration professionals, and Mac power users who drive unusual multi-display configurations involving video matrix switches, extenders, or signal processors that intercept EDID negotiation.
If you have ever wondered why macOS refuses to offer you 144 Hz on a monitor that clearly supports it, or why a conference room display resets to 1080p every time the HDMI cable is re-plugged, EDID is almost certainly the culprit — and this editor is the right instrument to investigate and fix it. Hobbyists building custom arcade cabinets, retro gaming setups with modern HDMI converters, or home-cinema rigs with older projectors will also find it indispensable.
What are the best AW EDID Editor alternatives?
The closest cross-platform alternative is wxEDID, an open-source editor that covers EDID 1.x thoroughly but has a rougher interface and weaker DisplayID coverage. On Windows, Monitor Asset Manager and Custom Resolution Utility (CRU) are the go-to choices for display timing work, but neither runs on macOS. For read-only inspection — when you just want to see what your display is advertising — Apple's own System Information app and third-party tools like SwitchResX expose EDID data, but they do not let you edit and flash a replacement. AW EDID Editor is uniquely positioned on the Mac because it combines genuine write capability with DisplayID and CEA extension support in a native app.
