WaveCrux
A Modern Waveform Viewer
Free
Now clears a crowded view in one step, with Undo. A fast, modern viewer for VCD, FST and GHW simulation waveforms, for FPGA and ASIC engineers on the go.
WaveCrux is a modern, high-performance waveform viewer for digital design and verification engineers. Open VCD, FST, GHW, LXT and LXT2 simulation traces directly on your iPhone or iPad — review a regression during a meeting, triage a CI failure from anywhere, or walk through a trace without opening your laptop.
GET STARTED IMMEDIATELY
Tap "Open Sample Waveform" on the welcome screen to explore a bundled trace with five decoded protocol buses — no files of your own needed.
WAVEFORM VIEWING
• Native Rust parsing engine — large multi-million-event traces open fast
• VCD, FST, GHW, LXT and LXT2 file formats
• Smooth pinch-to-zoom and pan, tuned for touch
• Full design hierarchy browser with search and filtering
• Cursors, markers, and time measurements
• Value formats: hex, decimal (signed and unsigned), binary, octal, ASCII, and enum translation
• Fixed-point and floating-point buses drawn as analog curves
PROTOCOL DECODERS
• Serial: UART, SPI, I2C
• Buses: AXI4-Lite, APB, AHB-Lite, Wishbone
• RISC-V instruction decode
• Decoded transactions overlay directly on the waveform
ANNOTATE AND SHARE
• Add a callout, arrow or shaded band to a signal at a moment in time; it stays anchored as you pan and zoom
• Notes record the value the signal had when you wrote them, and flag themselves when a re-run changes it
• Share Annotated Waveform sends your notes and the trace they refer to as one small file, openable on desktop or in a browser
GTKWAVE FRIENDLY
• Import GTKWave .gtkw session files — signal lists, groups, colors, and formats come across
• Reads GTKWave translate filter files
BUILT FOR MOBILE
• Open waveform files straight from Mail, Slack, AirDrop, or the Files app
• Layout adapts from iPhone to iPad multi-pane
• Sessions preserve your signal selections, formats, cursors, and zoom
PRIVACY
• No account, no sign-in, no ads
• Your waveform files never leave your device
• Anonymous usage counts help decide what to build next. You are asked on first launch, the switch is in Settings → Privacy, and the complete list of what is counted is at edacrux.app/telemetry — never file names, signal names, or anything that identifies you
Available in English, Simplified Chinese, Japanese, and Korean.
WaveCrux is also available for macOS, Windows, and Linux — visit wavecrux.app to learn more.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
WaveCrux 1.1.
Clear a crowded view in one step. Clear Canvas, in the overflow menu and the command palette, takes every signal off the tab and keeps your file, cursors, markers and zoom. A group's menu adds Remove Group and Signals, and a scope in the signal tree adds Remove All in Scope. Every removal, including a single one, can be undone.
The transaction table shows every transaction a decoder finds. It used to stop at 2,000; rows are now drawn as you scroll.
A command palette button. Phones and tablets get a toolbar button for the command palette, so it no longer needs a hardware keyboard.
GTKWave save files import more faithfully: translate filters, zoom, scroll position and open scopes now come across. Solarized Dark, High Contrast Dark, Oscilloscope and OLED XR paint their own cursor, marker and ruler colors.
Fixes: the AXI4-Lite decoder handles several outstanding writes and reads, and lists those still unanswered at the end of the trace; a session that names a decoder this build cannot load shows it instead of hiding it.
Privacy: with usage statistics off, the app now keeps no installation ID, and the first-launch default reads your device's region setting as well as its language.
The developer, Ferrite Engineering LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ferrite Engineering LLC
- Size
- 39.4 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Ferrite Engineering LLC
