Free
Free plan available
Compared with Thunderbird
- Built in India (Chennai)
Office suites & productivity · Alternatives
Best Thunderbird alternatives in India (2026)
Thunderbird is an office suites & productivity product from MZLA, San Francisco, priced at Free with a free plan. We compared 20 alternatives on published price, free plan, platforms and made-in-India support: 20 have a free plan, 6 are built in India.
Quick answer
The closest alternatives to Thunderbird are Zoho Sheet (Free), Apache OpenOffice (Free), LibreOffice (Free), Apple iWork (Free) and Zoho Show (Free). Zoho Sheet is the top-ranked option with a free plan. Published prices in this list start at ₹58/month.
Why businesses look for a Thunderbird alternative
Indian support and GST
Thunderbird is built in United States. 6 alternatives are made in India, where GST, TDS and UPI are usually handled natively and support runs on IST.
Thunderbird alternatives compared
Ranked by how closely each product matches Thunderbird's category, pricing model, platforms and business size, then by rating. Prices exclude GST.
| # | Software | Starting price | Free plan | Platforms | Made in India | Rating | Compare |
|---|---|---|---|---|---|---|---|
| — | Thunderbird (current) | Free | Yes | Web | No | 4.5/5 | — |
| 1 | Zoho Sheet | Free | Yes | Web | Yes | 4.8/5 | |
| 2 |  Apache OpenOffice | Free | Yes | Web | No | 4.7/5 | |
| 3 |  LibreOffice | Free | Yes | Web | No | 4.7/5 | |
| 4 |  Apple iWork | Free | Yes | Web | No | 4.7/5 | |
| 5 |  Zoho Show | Free | Yes | Web | Yes | 4.8/5 | |
| 6 |  Google Calendar | Free | Yes | Web | No | 4.6/5 | |
| 7 |  Gmail | Free | Yes | Web | No | 4.6/5 | |
| 8 |  Zoho Calendar | Free | Yes | Web | Yes | 4.6/5 | |
| 9 |  Notion Calendar | Free | Yes | Web | No | 4.3/5 | |
| 10 |  WPS Office | Free plan | Yes | Web | No | 4.6/5 | |
| 11 |  Zoho Tables | Free plan | Yes | Web | Yes | 4.7/5 | |
| 12 |  OnlyOffice | Free plan | Yes | Web | No | 4.6/5 | |
| 13 |  FreeOffice | Free | Yes | Web | No | 4.3/5 | |
| 14 |  Stackby | Free plan | Yes | Web | Yes | 4.6/5 | |
| 15 |  Zoho Mail | ₹58/mo | Yes | Web | Yes | 4.7/5 | |
| 16 |  Airtable | Free plan | Yes | Web | No | 4.5/5 | |
| 17 |  Rows | Free plan | Yes | Web | No | 4.5/5 | |
| 18 |  Grist | Free plan | Yes | Web | No | 4.5/5 | |
| 19 |  Baserow | Free plan | Yes | Web | No | 4.4/5 | |
| 20 |  Microsoft Outlook | Free plan | Yes | Web | No | 4.5/5 |
Top 10 Thunderbird alternatives in detail
2. Apache OpenOffice
Apache Software Foundation · Wilmington · Office suites & productivity · 4.7/5
Open-source office suite.
Free
Free plan available
3. LibreOffice
The Document Foundation · Berlin · Office suites & productivity · 4.7/5
Free open-source office suite.
Free
Free plan available
Free
Free plan available
5. Zoho Show
Zoho Corporation · Chennai · Office suites & productivity · 4.8/5
Online presentation tool.
Free
Free plan available
Compared with Thunderbird
- Built in India (Chennai)
6. Google Calendar
Google · Mountain View · Office suites & productivity · 4.6/5
Calendar and scheduling.
Free
Free plan available
Free
Free plan available
8. Zoho Calendar
Zoho Corporation · Chennai · Office suites & productivity · 4.6/5
Online calendar from Zoho.
Free
Free plan available
Compared with Thunderbird
- Built in India (Chennai)
9. Notion Calendar
Notion Labs · San Francisco · Office suites & productivity · 4.3/5
Calendar linked to Notion.
Free
Free plan available
Free plan
Free plan available
Thunderbird alternatives by what you need
Lowest published price
Free Thunderbird alternatives
Indian alternatives to Thunderbird
How to choose a Thunderbird alternative
- Price per user per year across three or four seats adds up — compare Zoho Workplace if budget matters.
- Check compatibility with Excel-heavy workflows before switching suites.
- Look at storage limits and email archiving.
Thunderbird alternatives — FAQs
What is the best alternative to Thunderbird in 2026?+
The closest matches to Thunderbird on App Advisor are Zoho Sheet (Free), Apache OpenOffice (Free), LibreOffice (Free). They are ranked by how closely their category, pricing model, platforms and target business size match Thunderbird, then by rating. The best choice depends on your team size and budget.
Is there a free alternative to Thunderbird?+
Yes. 20 of the 20 alternatives listed have a free plan or are free: Zoho Sheet (Free), Apache OpenOffice (Free), LibreOffice (Free). Free plans usually cap users, records or transactions, so check the limits against your monthly volume.
What is the cheapest alternative to Thunderbird?+
Among alternatives that publish a price, Zoho Mail starts lowest at ₹58/mo. Zoho Sheet also has a free plan. Prices are read from each vendor's website and exclude GST.
Is there an Indian alternative to Thunderbird?+
Yes. 6 alternatives are built in India, including Zoho Sheet (Free), Zoho Show (Free), Zoho Calendar (Free). Indian products usually handle GST, TDS and UPI natively and bill in rupees.
Thunderbird vs Zoho Sheet: which is better?+
Zoho Sheet is the closest match to Thunderbird in our catalogue. Key differences: Built in India (Chennai). Compare them side by side before you book a demo.
How were these Thunderbird alternatives chosen?+
Every product listed sits in office suites & productivity or a category Thunderbird also covers, and MZLA's own products are excluded. Prices, free plans and platforms come from each vendor's official website. App Advisor does not sell any of this software.
Free shortlist
Not sure which Thunderbird alternative fits?
Tell us your team size and budget and we'll send a shortlist of three.
Related alternatives
Zoho Sheet alternativesApache OpenOffice alternativesLibreOffice alternativesApple iWork alternativesZoho Show alternativesGoogle Calendar alternativesGmail alternativesZoho Calendar alternativesNotion Calendar alternativesWPS Office alternativesZoho Tables alternativesOnlyOffice alternativesAll office suites & productivity alternativesBrowse all alternatives