What is this?
Randatum is an offline-first desktop random data studio. All computation happens locally on your computerβno internet, no data upload. Generate random numbers and colors with one click, batch-produce structured test data, perform scientific randomization with standard methods, and keep reproducible records for every run.
Key Features
Quick Random
Random numbers (range/step/exclude/dedupe/sort/seed) and random HEX color palettes in one click.
Data Studio
17 field types, batch generate structured test data, with data corruption, preview, column stats, and multi-format export.
Scientific Randomization
Simple/block/stratified grouping, SRS/stratified sampling, repeated simulation, export reproducible research packages.
Reproducible Engine
Powered by Philox4x32-10 random source. Fix a seed and reproduce the exact same results every time.
Template Library
Save generation schemes as reusable templates. Import/export support.
Fully Offline
No login, no internet required. All generation and export happens locally. Your privacy, guaranteed.
Pricing
Free
Free
- Quick Random (numbers, colors)
- 10 basic field types
- CSV / TSV / JSON export
- Simple random grouping & SRS
- Fixed seeds & metadata
Pro
One-Time Purchase
Lifetime access Β· Works offline
- 7 advanced statistical distributions
- Weighted enumeration
- JSONL export
- Block/stratified grouping & sampling
- Repeated simulation & full reproducibility package