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Formula Foundry
What it is
Formula Foundry is an add-on for Microsoft Excel and Google Sheets that provides a formula editor and formula-generation tools. Its editor supports multiline authoring, syntax highlighting, structured formatting, indentation, autocomplete, find and replace, dark mode, and adjustable font size. A visual builder guides step-by-step formula creation with live preview, argument validation, nested groups, and drag-and-drop editing. Compatibility mode converts many Excel-specific functions into Google Sheets equivalents and flags formulas that cannot transfer. The optional AI assistant can generate, explain, and debug formulas from natural-language requests using only the context explicitly supplied. Users can define workbook variables and save, search, and reuse snippets; team sharing is available on Business. Editing runs in the spreadsheet client, according to the maker, without transmitting workbook content during editing. Plans range from Free to Pro and Business, with Enterprise by custom quote.
For and against
For
- Works inside Excel and Google Sheets
- Visual builder validates formula arguments
- Excel-to-Sheets compatibility mode is included
- Reusable variables and snippets are supported
- Editing does not transmit workbook content
Against
- Table transformation is unavailable
- AI is off by default
- Free plan limits tabs, snippets, variables, and generations
- No SOC 2 or ISO 27001 third-party audits
The verdict
Formula Foundry focuses on authoring, converting, and maintaining spreadsheet formulas across Excel and Google Sheets. Its plan structure separates individual quotas from broader team controls and support.
Who it suits
It is aimed at analysts, especially finance, data, and revenue teams working in Excel or Google Sheets. The Free plan suits limited individual use, while teams may need Business features.
Plans and prices
Free
AI assistant (~20 generations / mo) · 1 editor tab · 3 personal snippets · 3 custom @@variables
Read 7 Oct 2026 · formulafoundry.io
Pro
Extended AI usage · Unlimited editor tabs, personal snippets, and custom @@variables · Fix and debug formulas · Excel ⇄ Sheets conversion (Beta)
Read 7 Oct 2026 · formulafoundry.io
Business
Extended AI usage · Unlimited editor tabs, personal and shared team snippets, and custom @@variables · Domain-based invites · Custom SSO (SAML, OIDC)
Read 7 Oct 2026 · formulafoundry.io
Enterprise
SSO · Admin controls · Custom onboarding and training · Dedicated support
Read 7 Oct 2026 · formulafoundry.io
On the record
- AI assistant
- The AI assistant can generate, explain, and debug formulas using natural-language requests and formula context the user explicitly supplies.formulafoundry.io · read 7 Oct 2026
- AI data scope
- AI is off by default and receives only the cell, selection, or formula explicitly referenced for a request, for the duration of that request.formulafoundry.io · read 7 Oct 2026
- Audience
- The maker describes the product as built for analysts and highlights finance, data, and revenue teams as intended users.formulafoundry.io · read 7 Oct 2026
- Company
- The About page names Will, Yurii, and Toom as founders involved in the origin story, but does not state a founding year or headquarters.formulafoundry.io · read 7 Oct 2026
- Data handling
- The maker says the editor runs on the spreadsheet client and does not transmit formulas, cell values, or other workbook content to its servers during editing.formulafoundry.io · read 7 Oct 2026
- Editor
- The editor offers multiline formula authoring, syntax highlighting, structured formatting, indentation, autocomplete, find and replace, dark mode, and adjustable font size.formulafoundry.io · read 7 Oct 2026
- Excel compatibility
- Compatibility mode converts many Excel-specific functions to Google Sheets equivalents and flags formulas that cannot be transferred.formulafoundry.io · read 7 Oct 2026
- Formula generation
- Yesformulafoundry.io · read 20 Sep 2026
- Formula tools
- The visual builder creates formulas step by step with a live preview, argument validation, nested groups, and drag-and-drop editing.formulafoundry.io · read 7 Oct 2026
- Integrations
- The product works inside Google Sheets and Microsoft Excel, and supports conversion of formulas between the two spreadsheet platforms.formulafoundry.io · read 7 Oct 2026
- Primary platform
- multipleformulafoundry.io · read 20 Sep 2026
- Purpose
- Formula Foundry is an add-on that provides a formula editor for Microsoft Excel and Google Sheets.formulafoundry.io · read 7 Oct 2026
- Security and compliance
- The maker says traffic uses HTTPS with TLS 1.2 or higher, and that it does not yet have SOC 2 or ISO 27001 third-party audits.formulafoundry.io · read 7 Oct 2026
- Paid from
- 15formulafoundry.io · read 20 Sep 2026
- Support
- All users have online documentation and contact forms; Business includes priority support and Enterprise includes dedicated support.formulafoundry.io · read 7 Oct 2026
- Table transformation
- Noformulafoundry.io · read 20 Sep 2026
- Variables and snippets
- Users can define workbook variables and save, search, and insert reusable formula snippets; team snippet sharing is available on Business.formulafoundry.io · read 7 Oct 2026
