Best Free Office Software in 2026: 18 Free Alternatives to Paid Apps

Free Adobe Acrobat Pro alternatives

$29.99/mo

PDF24 Creator Established
Free for private and commercial use, works offline on Windows; web tools for everyone else.
PDFgear Solid
Free desktop PDF editor with no watermark and no advertised file limits.
Stirling PDF Solid
Open-source PDF toolkit you can self-host: merge, split, OCR, convert.
PDFsam Basic Established
Open-source split, merge and rotate with no watermark.
Apple Preview Established
Built into every Mac: sign, fill forms, annotate and reorder pages.

$9.99/mo

LibreOffice Established
Open-source Word, Excel and PowerPoint replacements. Opens and saves Office files.
Google Docs, Sheets & Slides Established
Free with a Google account, real-time sharing, opens Office files.
ONLYOFFICE Desktop Solid
Free desktop editors with an interface very close to Microsoft Office.
ArtCraft Office clones Early alpha
AI-built Word, Excel and PowerPoint clones from the ArtCraft developer. Brand-new; keep backups.

$12.00/mo

Obsidian Established
Local-first markdown notes with a huge plugin library. Free for personal use.
AppFlowy Solid
Open-source Notion-style workspace you can self-host.
Logseq Solid
Open-source outliner for daily notes and linked thinking.
Anytype Solid
Local, end-to-end encrypted Notion-style app. Still maturing.

$30.00/mo

LanguageTool (free) Established
Grammar and spelling checker for 30+ languages with a solid free browser extension.
QuillBot (free) Established
Free paraphrasing and grammar checking with word limits.

$16.99/mo

Jitsi Meet Established
Open-source video calls in the browser, no account needed.
Google Meet (free) Established
Free with a Google account; group calls are time-limited.
Zoom (free plan) Established
The free plan still works for short group calls with a time cap.