5 Best Free AI Tools for Excel in 2026

Q: How do I use AI in Excel for free?

Three ways: click Home, then Analyze Data inside Excel (included with Microsoft 365); upload the file to the free tier of ChatGPT, Claude or Gemini and ask in plain English; or upload it to a free DataHub Pro account, which builds a dashboard from your columns and answers 6 questions on your first day, then 3 a day.

The best genuinely free AI tools for Excel in 2026 are DataHub Pro (free account: upload a spreadsheet and ask 6 AI questions on your first day, then 3 a day, with charts and forecasts), ChatGPT and Claude (free tiers for formula help and explaining a file), and Excel's own Analyze Data button, which comes with Microsoft 365 at no extra cost. Copilot in Excel is a paid add-on after any trial. "Free" usually means a free tier with limits; this page lists exactly what each one charges for.

Try it on your own file → · Updated 24 October 2026

"Free" hides a lot of small print. Some of these tools are free forever, some give you a real free tier with limits, and at least one comes only with a paid subscription. Here's an honest round-up of the genuinely useful free AI tools for Excel in 2026 — what's actually free, what each is best at, and what you pay if you outgrow it.

The DataHub Pro Team

DataHub Pro · About

The short version

· Best free analytics: DataHub Pro — free in-browser forecasting, cohort and anomaly tools (no signup), plus a free account tier for AI Q&A on your files.

· Best free formula help: skip writing one — 201 Excel templates where the formulas are already built, tested and visible before you sign in.

· Best free general assistant: Claude’s free tier takes a whole file and explains its reasoning; ChatGPT and Gemini are fine for quick questions on small ones.

· Watch out: Microsoft Copilot in Excel is not free on its own: it comes with a paid Microsoft 365 Personal or Family plan (60 AI credits a month), and businesses pay for a Copilot licence.

· Don’t want to build it at all: 201 ready-made Excel templates and dashboards — 3 free on any account, 20 on the trial, all of them on a paid plan.

Working from a CSV export rather than a workbook? We ranked the best AI tools to analyse CSV files separately, including how each one copes with large files.

How we picked them

Two rules. First, a real free path — either free forever, or a free tier you can genuinely use without a card. Second, and new for this update: only tools we expect to still be here in three years. That means established platforms and the major AI assistants, not the long tail of $7-a-month formula generators that appear and disappear every few months. A spreadsheet you rely on every quarter should not depend on a tool that may not exist by then.

For each one we note exactly what’s free, what it’s best for, and what you pay if you upgrade, so you don’t discover a paywall halfway through a task. No affiliate links; pricing and free-tier limits are taken from each vendor in 2026 and change often, so verify before you commit.

Tool	What's free	Best for	Paid from
DataHub Pro	In-browser forecasting, cohort & anomaly tools (no signup) + free account tier	Free AI analytics & forecasting	$19.99/seat
Copilot in Excel	With Microsoft 365	Native M365 assistant	Personal $9.99/mo; Business $21/user/mo
ChatGPT (free)	Free tier (small files, capped)	Ad-hoc questions on a small file	$20/mo (Plus)
Claude (free)	Free tier (file upload)	Reasoning over a spreadsheet you upload	$17/mo (Pro)
Gemini (free)	Free with a Google account	Quick questions if you live in Google Sheets	$19.99/mo (AI Pro)

Short on time? The row at the top of that table is free to try right now — no card, no install — and it comes with 201 Excel templates and dashboards where the work is already done.

Start free → See the templates →

1. DataHub Pro (free tier)

Free tools + free account · paid from $19.99/seat

The most capable genuinely-free option for actual analysis, not just formulas. Three in-browser tools — Holt-Winters forecasting, cohort retention and an anomaly detector — run entirely in your browser tab with no signup and your data never leaves your machine. Create a free account and you also get AI Q&A on an uploaded Excel or CSV file: 6 questions on your first day, then 3 a day, no card. When you need recurring dashboards, larger files and one-click Word/PowerPoint reports, the paid plan is $19.99/seat.

ProsFree forecasting/cohort/anomaly tools with zero signup; data stays in your browser; free account adds AI Q&A (6 questions on day one, then 3 a day); every paid answer ships an auditable pandas call trace; GDPR-ready, never trains on your data.

ConsThe free in-browser tools are single-purpose; full dashboards, large files and report export are on the paid plan.

Start free — no card needed →

2. Microsoft Copilot in Excel (with Microsoft 365)

Personal $9.99/mo · Family $12.99/mo · Business $21/user/mo

The native Microsoft 365 assistant inside Excel is excellent for formula help, summarising ranges and quick analysis, and Agent Mode can build a sheet from a description. It is not free on its own: Microsoft 365 Personal ($9.99 a month) and Family ($12.99) include it with 60 AI credits a month for the account owner, and businesses need Copilot Business ($21 per user a month, yearly). We include it for honesty rather than as a free option.

ProsBest-integrated in-grid experience if you're on Microsoft 365; nothing new to install.

ConsNeeds a paid Microsoft 365 plan; home plans are capped at 60 AI credits a month; limited forecasting and no report export.

See what $19.99/seat includes instead →

For a business, Copilot is $21 per user a month on top of Microsoft 365. Ours is $19.99/seat with dashboards, Word/PowerPoint export and all 201 templates included.

3. ChatGPT (free)

Free tier · Plus from $20/mo

ChatGPT's free tier can answer questions about a small spreadsheet you paste or upload, write formulas and explain steps. It's flexible and familiar, but treat its numeric answers as drafts — on the free tier especially, it's a general assistant, not an audited analytics tool.

ProsFree and flexible; good for one-off questions, formula help and quick explanations.

ConsFile size and analysis features are limited on the free tier; no spreadsheet-native workflow or audit trail; verify any number that matters.

Get the same answer with a trace you can audit →

Every paid answer ships the pandas call behind it, so a number going into a board pack can be checked. Templates · Dashboards.

4. Claude (free)

Free tier · Pro from $17/mo

Anthropic’s assistant takes an uploaded Excel or CSV file and reasons over it in plain English — summarising, spotting patterns and explaining what a column actually means. The free tier accepts a real file rather than a pasted fragment, which makes it the most capable free general assistant for spreadsheet questions right now.

ProsFree tier accepts file uploads; strong at explaining its reasoning step by step; copes well with messy real-world sheets.

ConsNo spreadsheet-native workflow; nothing is saved as a dashboard or report; no scheduled refresh; verify any figure that matters.

Keep the answer, not just the chat →

A chat window forgets. Turn the same file into a dashboard that refreshes, or start from one of 201 templates where the model is already built.

5. Gemini (free)

Free tier · AI Pro from $19.99/mo

Google’s assistant is free with any Google account and is the natural choice if your data already lives in Google Sheets, where it sits in the sidebar. For Excel files it behaves like any chat tool: upload, ask, read the answer.

ProsFree with a Google account; built into Google Sheets; handles a reasonable file size on the free tier.

ConsSheets-first rather than Excel-first; answers are not auditable; no reporting or export workflow around them.

Excel in, dashboard out →

If your data is in Excel rather than Sheets, bring it here — charts, forecasts and a Word/PowerPoint export in one pass. Free to start.

Free AI add-ins for Excel: what is actually free

Searches for a free AI add-in for Excel usually end in one of three places, and only one of them is free with no catch.

Excel’s built-in Analyze Data (Home tab → Analyze Data). Not an add-in at all: it comes with a Microsoft 365 subscription at no extra cost. Click inside a table and it suggests charts, PivotTables and trends, and answers simple questions such as “total sales by region”. It is the free AI most Excel users already have and never open.
AI add-ins from the Office Add-ins store (Insert → Get Add-ins). Most are freemium: a small allowance of free requests, then a monthly subscription. Read the pricing line on the listing before you build a weekly report on one, and check what it sends to its own servers.
Copilot in Excel. Microsoft’s assistant inside the grid. It comes with Microsoft 365 Personal and Family (60 AI credits a month); businesses pay for a Copilot licence on top of Microsoft 365.

DataHub Pro is not an add-in: it runs in the browser on any Excel or CSV file, so it works the same on Windows, Mac and Excel for the web, with nothing to install and no admin approval needed.

How to use AI in Excel for free: three ways

Inside Excel. Select any cell in your data, then Home → Analyze Data. Type a question in the box at the top of the pane, or pick a suggested chart and insert it. Best for a quick look at one table.
In a free chat assistant. Upload the file to ChatGPT, Claude or Gemini on their free tiers and ask in plain English, or ask for the formula and paste it back into Excel. Best for writing a formula or explaining what a column means. Check any number before it goes into a report.
On your own file in DataHub Pro. Create a free account, upload the spreadsheet and the dashboard builds itself from your columns; then ask up to 6 AI questions on your first day and 3 a day after that. Best when the answer has to become a chart, a forecast or something you send to someone.

Free AI tools for Excel data analysis

For analysis rather than formulas, the job decides the tool. To spot trends and outliers in one table, Excel’s Analyze Data is enough. To forecast a monthly series, the free forecasting calculator runs Holt-Winters in your browser with no signup. To find unusual values, the anomaly detector does it the same way. To ask questions of a whole file and keep the answer as a dashboard, upload it to a free DataHub Pro account. And if the model you need is a cash flow, budget vs actual or KPI dashboard, a ready-built Excel template is often faster than any AI.

Or skip the AI entirely: 201 Excel templates, already built

Half the reason people go looking for an AI tool is that they don’t want to build the model. So we built them. 201 ready-to-use Excel templates and dashboards — every formula already written, tested and visible on the template’s own page before you sign in. Cash flow, cohort retention, budget vs actual, KPI dashboards, Gantt charts, break-even, churn.

FinanceCash flow forecasts, 3-statement models, budget vs actual, break-even, AR ageing.

DashboardsKPI dashboards, scorecards, heat maps and funnel charts that update from your data.

Sales & retentionPipeline, cohort retention, churn analysis, pricing and margin models.

ProjectsGantt charts, capacity plans, resource loading and timeline templates.

What you get on each plan:

3templates on the free plan — yours to keep, for good.

20templates during the 7-day trial (card required, cancel any time).

201every template and dashboard on a paid plan, $19.99/seat.

Every template stays browsable on every plan — you can read what’s inside each workbook before deciding it’s worth an upgrade. Re-downloading one you already took is always free.

Start free → Browse all 201 →

Which free tool should you use?

Be honest about the job. If you only need a single formula written, a general assistant like ChatGPT will do it in seconds for nothing — that is a solved problem and we are not going to pretend otherwise. But most people asking for “AI in Excel” do not want a formula; they want the answer, in a format they can send to someone. That is a different tool — and often it is not a tool at all, but a workbook where the model is already built.

For that, DataHub Pro is the one on this list that goes end to end: free in-browser forecasting, cohort retention and anomaly detection with no signup and nothing leaving your browser; a free account for AI Q&A on your own file; 201 Excel templates and dashboards where the model is already built; and one-click dashboards with Word/PowerPoint export when it needs to leave the spreadsheet. Free to start, $19.99/seat when you outgrow it — and every paid answer carries the pandas trace behind it, so a number in a board pack can be checked.

Start free, on your own spreadsheet

Run a Holt-Winters forecast, cohort retention heatmap or anomaly check in your browser — no signup, no upload. Create a free account and you also get AI Q&A on your own file plus 3 Excel templates to keep. Start the 7-day trial and that becomes 20 templates, dashboards and report export — a card is needed to start the trial.

Start free → Browse all 201 templates →

Frequently asked questions

What is the best free AI tool for Excel?

It depends what “free” means to you. For genuinely free analytics — forecasting, cohort retention and anomaly detection — DataHub Pro's in-browser tools run with no signup and no upload, and a free account adds AI Q&A on your own file plus 3 Excel templates to keep. ChatGPT's free tier handles ad-hoc questions on small files. Microsoft Copilot in Excel is not free on its own: it comes with a paid Microsoft 365 plan.

Are free AI tools for Excel actually free, or just a trial?

Both exist, so check before you rely on one. DataHub Pro's three in-browser calculators are free forever and never send data to a server, and its free account includes 3 Excel templates you keep permanently. Microsoft Copilot in Excel, by contrast, is a paid add-on once any trial ends. This page labels each tool as free-forever, free-tier with limits, or trial-only.

Is there a free AI add-in for Excel?

Excel’s built-in Analyze Data feature is the closest: it comes with Microsoft 365 at no extra cost and needs no add-in. Most AI add-ins in the Office store are freemium, with a small free allowance and then a subscription, and Copilot in Excel comes with a paid Microsoft 365 plan. DataHub Pro runs in the browser, with 6 free AI questions on your first day and 3 a day after that; its free Excel add-in (no AI, no account) summarises a table and checks every formula for mistakes.

How do I use AI in Excel for free?

Three ways: click Home → Analyze Data inside Excel (included with Microsoft 365); upload the file to the free tier of ChatGPT, Claude or Gemini and ask in plain English; or upload it to a free DataHub Pro account, which builds a dashboard from your columns and answers 6 questions on your first day, then 3 a day.

Can I do AI data analysis in Excel for free?

Yes, within limits. You can run a free Holt-Winters forecast, cohort retention or anomaly check in DataHub Pro's in-browser tools, paste a small dataset into ChatGPT's free tier, or start from one of 201 ready-built Excel templates where the analysis is already modelled — 3 are free on any account, 20 during the 7-day trial, and all 201 on a paid plan at $19.99/seat.