5 Best Free AI Tools for Excel in 2026
The best genuinely free AI tools for Excel in 2026: DataHub Pro (free tier — upload a spreadsheet, ask questions in plain English, get charts and forecasts), ChatGPT (free for formula help and explaining data you paste in) and Microsoft Copilot in Excel on a trial. "Free" usually means a real free tier with limits; this page lists exactly what each one charges for.
Try it on your own file → · Updated 10 September 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 is only free until a trial runs out. 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 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 free only during a trial — it's a paid add-on after that.
· 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.
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 | Trial only | Native M365 assistant | ~$30/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.
1. DataHub Pro (free tier)
Free tools + free account · paid from $19.99/seatThe 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/CSV file. When you need recurring dashboards, larger files and one-click Word/PowerPoint reports, the paid plan is a flat $19.99/seat.
2. Microsoft Copilot in Excel (trial)
Trial only · then ~$30/user/moThe native Microsoft 365 assistant inside Excel is excellent for formula help, summarising ranges and quick analysis — but it's only free during a trial. After that it's a paid Copilot add-on, so we include it here for honesty rather than as a free-forever option.
Copilot is roughly $30/user/mo 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/moChatGPT'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.
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/moAnthropic’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.
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/moGoogle’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.
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.
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.
What you get on each plan:
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.
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 — no card to begin.
Frequently asked questions
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