M

MARISOFT

Small tools. Useful software.

A collection of practical desktop utilities is being prepared.

SITE UNDER CONSTRUCTION

Please check back soon.

M
MARISOFT
small & useful software
Practical desktop utilities
without unnecessary complexity.
HomeSoftwareWhat's NewAbout

Welcome to Marisoft

Marisoft is a small collection of practical software utilities created to solve specific problems simply and efficiently.

The programs are designed to be lightweight, understandable and useful — the kind of software you can download, run and get on with your work.

Software
✉

Thunderbird Archive Viewer

A lightweight viewer for old Thunderbird MBOX mail archives.

Browse large mailboxes without importing them back into Thunderbird. Includes fast indexing, HTML message display, attachment access and original EML export.

Version:0.8.2
Platform:Windows x64
License:Freeware
Downloads:—
Status:Development release

Download for Windows  |  Release notes  |  Source code

More utilities are on the way.
Marisoft is a hobby software project. New programs will appear here when they are useful enough to share.
What's New
30 Sep 2026
Thunderbird Archive Viewer v0.8.2

First public Marisoft release. Windows x64 download and source code are now available.

30 Sep 2026
Marisoft website launched

The Marisoft project now has a home on the web.

Quick Links
  • Software downloads
  • Thunderbird Viewer on GitHub
  • Latest updates
  • About Marisoft
Site Information
Designed for fast loading and compatibility.

No tracking.
No advertising.
No unnecessary scripts.
About Marisoft

Marisoft develops small utilities for everyday technical and computer tasks. The emphasis is on focused functionality, modest system requirements and straightforward interfaces.

This website intentionally follows the compact, information-first style of software websites from the early 2000s.

Marisoft  |  Small & Useful SoftwareLast updated: 30 September 2026