Factodus

Solo developer · Spain

Factodus small, careful software

Tools that do one job well and say plainly what they do to your files or your messages, and what they do not.

Products

Two product lines so far

ShelfSpace in the Diorama theme: four games as boxes on a shelf under a hydraulic press, with an estimate of 2.6 GB that LZX can free
For PC gamers · Windows 10 and 11

ShelfSpace

Win back disk space from your game library without breaking a single game. ShelfSpace compresses installed games in place with the compression built into Windows, estimates the savings first and can undo it at any time.

  • Estimate first: a low–high range for every game
  • XPRESS and LZX, with pause, resume and cancel
  • No admin rights, no account, no telemetry
See ShelfSpaceFree guide: compact.exe by hand
For developers · message brokers

Queue Studio

See what is actually in your queues, from the IDE or editor you already have open. Peek without side effects where the broker allows it, warn before every read where it does not.

  • Dead letters leave the source only after the broker confirms each copy
  • Three tools: RabbitMQ, Amazon SQS and Azure Service Bus
  • Local emulators, and private clusters through an SSH bastion
See Queue Studio