NewAnalyze 1M rows — 100% in your browser

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Gribly turns Excel and CSV files into instant answers, charts, and explanations — without writing a single formula. Your data never leaves your device.

No credit card · No uploads to any server · Free forever tier

app.gribly.app/workspace/q3-revenue.xlsx
Conversationsales_2024.xlsx · 84,219 rows
Which quarter had the highest revenue, and by how much did it grow?

Q4 led with $96.4K in revenue — your strongest quarter. That's a +35% jump over Q3 and 2× Q1.

Ask a follow-up…
Revenue by quarter+35%
Q1
Q2
Q3
Q4

Total revenue

$277.4K

Avg / quarter

$69.3K

Why Gribly

The power of an analyst, the privacy of a local file

Most AI spreadsheet tools quietly upload your file to their servers. Gribly is built the opposite way — fast, capable, and completely private.

Privacy by architecture

Every calculation runs locally in your browser. Your spreadsheet is never uploaded, stored, or seen by anyone — not even us.

Plain-English questions

No SQL, no pivot tables, no formulas. Just ask what you want to know and get a clear answer back.

Answers in seconds

First answer in 5–10 seconds. Follow-up questions land in under two.

Up to 1M rows

Built to chew through large, messy, real-world datasets without breaking a sweat.

Charts that explain

Get auto-generated visualizations alongside natural-language explanations of what the data means.

Zero data sent to servers

There's no backend round-trip for your data. Disconnect your wifi mid-analysis and it keeps working.

How it works

From spreadsheet to insight in three steps

No setup, no onboarding, no learning curve. If you can open a file, you can use Gribly.

01

Drop in your file

Drag an Excel or CSV file into Gribly. It loads straight into your browser — nothing is uploaded anywhere.

02

Ask in plain English

Type your question like you'd ask a colleague. "What were my top 5 customers last quarter?" Done.

03

Get answers & charts

Gribly computes locally and replies with a clear explanation plus the right visualization in seconds.

0%Privacy guaranteed
>0sAvg. answer time
0MRows supported
0Bytes sent to servers
Loved by data people

Analysts, founders, and finance teams trust Gribly

I deal with client financials all day. Gribly is the first AI tool I actually trust — nothing I open ever leaves my laptop.
ASAnanya Sharma
It answered a question about 600k rows of sales data faster than I could've built the pivot table. Follow-ups are basically instant.
RMRohan Mehta
No formulas, no uploads, no nonsense. I asked 'what's driving the dip in March?' and got a clear, plain-English explanation right away.
PNPriya Nair
Pricing

Simple pricing. Absurd value.

Start free and stay free for as long as you like. Upgrade to Plus for the price of a coffee — once.

Free

Everything you need to start analyzing privately.

$0/month
Get started free
  • 15 questions per month
  • Up to 1M rows per file
  • 100% local processing
  • Unlimited file uploads
  • Charts & explanations
  • Community support
Most popular

Plus

For people who live in their spreadsheets.

$1/month
Upgrade to Plus
  • 100 questions per month
  • Everything in Free
  • Priority response speed
  • Projects never auto-delete
  • Priority support

Prices in USD. Cancel anytime. Your data stays yours, on every plan.

FAQ

Questions, answered

Correct. Gribly loads and analyzes your file entirely client-side using your browser's own compute. There is no upload step and no server copy of your spreadsheet — ever.

Excel (.xlsx, .xls) and CSV files are supported. You can drop in multiple files and switch between them freely.

Gribly handles datasets of up to 1 million rows. Performance depends on your device, but most questions return an answer within 5–10 seconds.

Not at all. You ask questions in plain English and Gribly figures out the calculations for you, then explains the result in clear language.

Free gives you 15 questions a month with all core features. Plus ($1/month) bumps you to 100 questions, prioritizes response speed, keeps your projects from auto-deleting, and includes priority support.

Your raw spreadsheet data stays on your device. Only your question and the small computed result needed to phrase a natural-language answer are processed — never the underlying rows.

Private by default

Your spreadsheets have answers. Go get them.

Start analyzing in seconds — no account uploads, no risk, no credit card. Just you and your data.