Run the analysis.Rewind the mistake.
VeraDesktop analyzes at full speed and checkpoints every step automatically — so you can branch into a new approach, compare results side by side, and rewind the moment a hypothesis doesn't hold. Nothing you've computed is ever thrown away.
also available for Windows and Linux · free to try
Built for the moment you'd normally wait
VeraDesktop's engine is written to keep pace with how you actually think — run a transform, see it applied, run the next one. No spinner between the idea and the result.
Full speed, full history
Every run executes against an in-memory columnar engine, so even multi-join queries over tens of millions of rows return before you've moved your hand to the next key.
Every run is a checkpoint you can return to
Think of your analysis like a repository. VeraDesktop saves state automatically as you work, lets you branch off to try a different approach, and rewinds instantly the moment a hypothesis doesn't hold — no re-running the whole pipeline from scratch.
Automatic checkpoints
Every transform, filter, and join is saved as its own restore point — no manual “save version” step required.
Branch freely
Try a second approach without touching the first. Compare both branches' results side by side before you commit.
Instant rewind
Jump back to any checkpoint in one click. The engine restores state — it doesn't replay the whole pipeline.
An interface that stays out of your way
Editor, checkpoint history, and live results share one window — so switching between writing a transform and reading its output never breaks your focus.

Checkpoint gutter
Drag the endpoints to pick exactly which range of your script re-runs.
Checkpoint metadata
Rows, columns, duration, and the delta against the previous checkpoint.
Results, profile, console
Every panel reads from the checkpoint you have selected — nothing goes stale.
Start analyzing. Never lose a step.
VeraDesktop is free to try — full checkpoint history included, no account required.