High-performance waveform viewer for digital logic engineers. GPU-accelerated rendering, built-in protocol analyzers, and a scriptable console — all in one tool.
No subscriptions. No seat licenses. No feature gates. Every capability ships in every release.
OpenGL 3.3 with hierarchical LOD rendering. Handles large waveforms at 60 FPS.
UART, SPI, I2C, AXI-Stream, AXI4, and valid/ready handshake analysis. Decoded inline on the waveform.
70+ commands with autocomplete, aliases, and macro recording (.ltr). Every GUI action has a console equivalent.
Load two VCDs, overlay the differences. Compare passing vs failing simulation runs visually.
Expression tree engine (AND, OR, XOR, NOT, edge detect). Virtual bus grouping. Bit slicing. Value search.
VCD, FST, GHW, Vivado ILA CSV, native ltrace. Open any format. Plugin SDK for custom decoders.
Every one of these is in the current release. No roadmap promises. No "coming soon".
Free. No registration. GPG-signed with SHA256 checksums.