Smartsheet
Spreadsheet-style work management platform for projects, portfolios and processes at scale.
Paid SubscriptionFrom $9/user/mo30-day trial
- Web app
- iOS (iPhone & iPad)
- Android
- macOS
What is ONLYOFFICE?
Open-source office suite with spreadsheet, document and presentation editors, free desktop apps and a cloud collaboration platform ONLYOFFICE is an open-source office suite built by Ascensio System SIA, a company registered in Riga, Latvia.
Our verdict
ONLYOFFICE earns its rating as the open-source office suite pick: its Spreadsheet Editor is highly compatible with Microsoft Office formats, the desktop editors are free on Windows, macOS and Linux, and the project states GDPR compliance with code on GitHub. For teams wanting cloud collaboration, DocSpace offers a free Startup plan and a Business plan at $20 per admin per month, and everything can also be self-hosted.
Full review
ONLYOFFICE is an open-source office suite built by Ascensio System SIA, a company registered in Riga, Latvia. The official about page states that ONLYOFFICE was founded by Lev Bannov, and the company’s own history timeline begins with the launch of its predecessor TeamLab in July 2009, before the rebrand to ONLYOFFICE in 2014. The suite includes Spreadsheet, Document and Presentation editors with strong Microsoft Office format compatibility, and the source code is published on GitHub.
There are three distinct products, and pricing only makes sense with that scope. First, ONLYOFFICE Desktop Editors: free apps for Windows, macOS and Linux, plus mobile apps for iOS and Android. Second, ONLYOFFICE Docs: the self-hosted or embedded editors for businesses and developers. Third, ONLYOFFICE DocSpace: the cloud collaboration platform where rooms of users co-edit documents and spreadsheets in real time. Official connectors cover WordPress, Jira and Zoom, among many others.
Pricing, verified on the
ONLYOFFICE is an open-source office suite built by Ascensio System SIA, a company registered in Riga, Latvia. The official about page states that ONLYOFFICE was founded by Lev Bannov, and the company’s own history timeline begins with the launch of its predecessor TeamLab in July 2009, before the rebrand to ONLYOFFICE in 2014. The suite includes Spreadsheet, Document and Presentation editors with strong Microsoft Office format compatibility, and the source code is published on GitHub.
There are three distinct products, and pricing only makes sense with that scope. First, ONLYOFFICE Desktop Editors: free apps for Windows, macOS and Linux, plus mobile apps for iOS and Android. Second, ONLYOFFICE Docs: the self-hosted or embedded editors for businesses and developers. Third, ONLYOFFICE DocSpace: the cloud collaboration platform where rooms of users co-edit documents and spreadsheets in real time. Official connectors cover WordPress, Jira and Zoom, among many others.
Pricing, verified on the official pricing pages in October 2026: Desktop Editors are free. DocSpace cloud has a free Startup plan for 3 admins with unlimited users, and its Business plan costs $20 per admin per month, with only admins paid. Self-hosted ONLYOFFICE Docs Home costs $149 per server per year, and Docs Enterprise is offered as a 1-year license from $30 per connection per year with a 50-connection minimum, or as a lifetime license via quote, per the official pricing page. Because these are different products with different units, we do not show a single starting price for the listing. The official pricing page offers a 30-day free trial of the cloud DocSpace Business plan (Try free for 30 days); the permanently free products cover the rest.
Watch-outs: the three-product pricing structure takes a moment to map, and the per-admin model on DocSpace differs from the per-user pricing of most suites, so compare totals carefully. Self-hosting Docs is powerful but needs IT capacity. Desktop Editors are full-featured for most work, though Excel power users with niche add-ins may still miss Microsoft-specific tooling.
Overall, ONLYOFFICE is the strongest open-source option in this category: a free desktop spreadsheet editor that opens Office files cleanly, a genuinely free cloud tier for small teams, and a self-hosting path for privacy-sensitive organizations. Teams wanting a simpler single-price cloud suite should compare Google Workspace, Microsoft 365 and Zoho.
Who it's for
Best for
- Teams that want a free
- open-source spreadsheet editor for desktop
- Privacy-conscious organizations that prefer self-hosting their office suite
- Developers embedding document and spreadsheet editing into their own products
- Businesses wanting a free DocSpace workspace for real-time co-editing
Not ideal for
- Buyers wanting one simple published per-user price (pricing spans three products with different units)
- Non-technical teams considering self-hosting without IT support
- Power Excel users who depend on niche advanced features or add-ins
- Teams that want a vendor-run phone support channel on free plans
How we tested
We researched ONLYOFFICE in October 2026 using its official website, about page, unified pricing page, download pages, legal notices, privacy policy and help center, and compared its published capabilities and pricing against other spreadsheet software in this category. Because ONLYOFFICE prices three distinct products (free Desktop Editors, the DocSpace cloud platform, and self-hosted Docs), we present each price with its product scope rather than a single starting price. Ratings reflect editorial judgment based on that research. We did not purchase a plan or run a live pilot for this listing.
At a glance
| Pricing | Open source |
|---|---|
| Free plan | Yes |
| Free trial | Yes (30 days) |
| Pricing page | View pricing |
| Platforms | Web app, iOS (iPhone & iPad), Android, macOS, Windows, Linux, Self-hosted / On-premise |
| API | Yes |
| Company | Ascensio System SIA |
| Apps Insight Score | 49/100 |
Why this app scored 49/100
Editorial Review 28/30
- Product quality 8/10 8/10
- Ease of use 5/5 5/5
- Feature depth 5/5 5/5
- Innovation 5/5 5/5
- Value for money 3/3 3/3
- Recommendation confidence 2/2 2/2
Trust & Verification 7/25
- AppsInsight badge installed Badge not installed 0/15
- HTTPS website HTTPS 1/1
- Business support email Missing 0/1
- Privacy policy published Provided 2/2
- Terms of service published Provided 1/1
- Security certifications None listed 0/2
- Knowledge base / help center Provided 2/2
- Social profiles linked 5 profiles linked 1/1
Community 0/20
- Verified reviews & rating 0 reviews (5 needed) 0/15
- Recent reviews No reviews yet 0/5
Product Profile 11/20
- Detailed description 370 words 2/3
- Screenshots 2 screenshots 1/3
- Demo video No demo video 0/2
- FAQ 4 items 1/2
- Feature list 6 items 1/2
- Pricing published Plan tiers published 3/3
- Pros & cons Pros & cons listed 1/1
- Integrations 2 integrations 0/2
- API available Yes 1/1
- Company details 3 of 3 details filled 1/1
Freshness 3/5
- Listing recently updated Updated 0 days ago 3/3
- Recent changelog entry No changelog entries 0/2
Editorial points are assigned by AppsInsight editors and cannot be purchased or influenced.
Integrations
Built for
Use case
Team collaboration
Use case
Document management
Industry
SaaS & technology
Industry
Education
Industry
Nonprofit
Industry
Government & public sector
How ONLYOFFICE compares
| Feature | ONLYOFFICE | Smartsheet | Airtable | Google Sheets |
|---|---|---|---|---|
| Rating | 4.4 / 5 | 4.6 / 5 | 4.5 / 5 | 4.5 / 5 |
| Pricing | Open source | Paid Subscription | Free+Paid | Free+Paid |
| Starting price | — | From $9/user/mo | From $20/seat/mo | From $7 |
| Free plan | Yes | Included | Included | Included |
| Free trial | Yes (30 days) | Yes (30 days) | No | Yes (14 days) |
| Platforms | Web app, iOS (iPhone & iPad), Android, macOS, Windows, Linux, Self-hosted / On-premise | Web app, iOS (iPhone & iPad), Android, macOS, Windows | Web app, iOS (iPhone & iPad), Android, macOS, Windows | Web app, iOS (iPhone & iPad), Android |
| Best for | Teams that want a free, open-source spreadsheet editor for desktop Privacy-conscious organizations that prefer self-hosting their office suite Developers embedding document and spreadsheet editing into their own products Businesses wanting a free DocSpace workspace for real-time co-editing | Teams whose shared spreadsheets have become fragile project trackers Project and PMO teams needing Gantt, dashboards and automations Enterprises that need SSO, governance and portfolio tooling Spreadsheet-comfortable teams that want structure without retraining | Operations, content teams, light CRM | Teams of any size that collaborate on spreadsheets daily Individuals and small businesses that need a free, capable spreadsheet Organizations already on Google Workspace Analysts who want AI help building and filling spreadsheets Mixed environments that exchange Excel files with partners |
ONLYOFFICE vs Smartsheet ONLYOFFICE vs Airtable ONLYOFFICE vs Google Sheets
Key features
Spreadsheet Editor
Full spreadsheet editing with strong Microsoft Office format compatibility, co-editing, plugins and macros.
Free Desktop Editors
Free document, spreadsheet and presentation apps for Windows, macOS and Linux, plus iOS and Android.
DocSpace cloud
Room-based cloud collaboration where teams co-edit documents and spreadsheets in real time.
Self-hosted Docs
ONLYOFFICE Docs runs on your own server for privacy-sensitive organizations and product embedding.
Open source
Source code published on GitHub under an open license, with an active contributor community.
Official connectors
Ready integrations for WordPress, Jira, Zoom and many other platforms.
Key benefits
- Edit Office-format spreadsheets without a Microsoft 365 subscription
- Keep sensitive documents on your own server with self-hosting
- Co-edit in real time from a free DocSpace workspace
- Use the same editors across desktop, mobile and web
Pricing
Open sourceFree plan30-day trial
Desktop Editors
$0 /mo
$0 billed annually
- Open-source document
- spreadsheet and presentation editors for desktop and mobile.
DocSpace Startup
$0 /mo
$0 billed annually
- Cloud collaboration for up to 3 admins with unlimited users and guests.
DocSpace Business
$20/admin /mo
$20/admin/month billed annually
- Cloud platform where only admins are paid; unlimited users and guests
- 250 GB per admin.
Docs Home (self-hosted)
$149/server/yr billed annually
- Self-hosted editors for individuals
- 10 users.
Docs Enterprise (self-hosted)
From $30/connection/yr billed annually
- Scalable
- secure self-hosted editing and collaboration
- starting from 50 connections.
Pros & Cons
Pros
- Free, open-source desktop editors on every major OS
- Free DocSpace Startup cloud plan for up to 3 admins with unlimited users (official pricing page)
- Strong compatibility with Microsoft Office file formats
- Self-hosting option for full data control
Cons
- Pricing spans three products with different units - per admin in the cloud, per server or per connection self-hosted - which takes care to compare (official pricing pages)
- DocSpace Business charges per admin rather than per user, unlike most office suites (official DocSpace pricing page)
Screenshots & media
ONLYOFFICE alternatives
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Frequently asked questions
Is ONLYOFFICE free?
The Desktop Editors for Windows, macOS and Linux are free and open source, and the DocSpace cloud Startup plan is free for up to 3 admins with unlimited users and guests. Paid options are DocSpace Business at $20 per admin per month, self-hosted Docs Home at $149 per server per year, and Docs Enterprise from $30 per connection per year (50-connection minimum). Verified on official pricing pages in October 2026.
Can ONLYOFFICE open Excel files?
Yes. The Spreadsheet Editor is built for high compatibility with Microsoft Office formats, including XLSX.
Who makes ONLYOFFICE?
ONLYOFFICE is built by Ascensio System SIA, a company registered in Riga, Latvia. The official about page states it was founded by Lev Bannov; its history timeline begins with the 2009 launch of its predecessor TeamLab.
Can I self-host ONLYOFFICE?
Yes. ONLYOFFICE Docs can be self-hosted, and the editors can also be embedded into your own products with the Developer edition.