Hitomi opens CSV or data/logs in non-standard formats instantly and offers intuitive and powerful filtering and analysis options.
Cost / License
- Free
- Open Source (GPL-3.0)
Since
- Since 2026
Open Source Microsoft Excel Alternatives
The best open source alternative to Microsoft Excel is ONLYOFFICE. If that doesn't suit you, our users have ranked more than 100 alternatives to Microsoft Excel and many of them are open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Microsoft Excel are LibreOffice - Calc, Apache OpenOffice, Proton Sheets and Collabora Office Classic.
filter to find the best alternatives
Most Microsoft Excel alternatives are Spreadsheet Apps, but you can also narrow the list to Office Suites or Team Collaboration Tools. Other popular filters are Free, Android, Open Source and iPad. You can also filter for EU-based alternatives if you prefer software from the European Union.
Alternatives list
- 59 Hitomi alternatives
mtCellEdit is a lightweight spreadsheet program. It is a small, no frills program which is designed to handle simple day to day spreadsheet tasks.
United Kingdom
+2
Germany
EU
CODAP is free educational software for data analysis. This web-based data science tool is designed as a platform for developers and as an application for students in grades 6-14.
TreeTime is an information organizer that stores text, numbers, and other data in linked trees. Mathematical operations like sums, ratios, and differences are calculated and updated on the fly. It exports to PNG, SVG, HTML, CSV, and plain text, and includes a configurable web interface.
- Germany
- EU
+4
The Simple Spreadsheet is a bare-bones spreadsheet with minimal features available for free, including sources.
The AI spreadsheet that understands plain English. No formulas required. Build budgets, track expenses, and invoices. Import Excel and the formula auditor runs in your browser.
United States
Pyspread is a non-traditional spreadsheet application that is based on and written in the programming language Python.
- Germany
- EU
Decentralized spreadsheet platform emphasizing privacy, end-to-end encryption, no required account, CoinGecko price feeds, smart contract and multi-chain data integration, IPFS sharing, Dune analytics embedding, custom API keys, and no centralized servers or AI scanning.
Greece- EU
+1
LedgerPaw is a portable Windows app that replaces the spreadsheet small landlords are quietly fighting with. Track properties, tenants, leases, and monthly rent payments in one place. See who's paid, who's behind, and what's owed at a glance, including last-month...
Cost / License
- Freemium
- Open Source (MIT)
Since
- New
A lightweight, keyboard-first spreadsheet that opens your Excel files in about 300ms and gives you a command palette instead of a ribbon.
- United States
Comma Chameleon is a desktop CSV editor (built with Electron.js) that provides a simple interface for editing data.
Cost / License
- Free
- Open Source (MIT)
Since
- Since 2018
- United Kingdom
