A free, open source spreadsheet
built for the AI era.

Open your files, inspect the formulas, and let an AI agent work in the sheet with you.

Try it in your browser — no account Download free desktop app View Source

Free and open sourceAI agents via MCPunder 75 MB, fully offlineNo subscription

Opens:

xlsxxlsodscsvtsv

VisiGrid engine 0.53.0

Try this

Change a quantity, a price or the budget. Click any total to see its formula. Then try Trace and Agent below.

Change a quantity or a price. Every total recalculates as you type.
Click any total to see its formula, with each input outlined.
Press Ctrl K to jump to any cell, name or value.
Then try the other sheets below: Trace, Agent, Lua and Vim keys.

=D6+D7

	A	B	C	D
1	Item	Qty	Price	Total
2	Monitor	2	249	498
3	Keyboard	3	89	267
4	Desk lamp	4	35	140
5
6	Subtotal			905
7	Tax	0.0925		83.71
8	Total			988.71
9	Budget	1000		Under budget
10
11
12
13

	A	B	C	D
1	Rep	Sales	Commission	Same, in Excel
2	Avery	38500	2295	2295
3	Jordan	64000	4500	4500
4	Morgan	182000	17940	17940
5	Total	284500	24735	24735

functions.lua COMMISSION

local TIERS = { {20000, .05}, {50000, .07}, {100000, .10}, {math.huge, .12} }
function COMMISSION(sales)
  local paid, floor = 0, 0
  for _, t in ipairs(TIERS) do
    paid = paid + math.max(0, math.min(sales, t[1]) - floor) * t[2]
    floor = t[1]
  end
  return paid
end

local TIERS = { {20000, .05}, {50000, .07}, {100000, .10}, {math.huge, .12} }
function COMMISSION(sales)
  local paid, floor = 0, 0
  for _, t in ipairs(TIERS) do
    paid = paid + math.max(0, math.min(sales, t[1]) - floor) * t[2]
    floor = t[1]
  end
  return paid
end

	A	B	C	E	F
1	Month	North	South	East	West
2	Jan	412	388	295	510
3	Feb	398	402	301	488
4	Mar	445	417	322	531
5	Apr	460	431	318	547
6	May	472	446	340	562
7	Jun	489	452	355	578
8	Jul	501	470	361	590
9	Aug	495	463	349	584
10	Sep	480	455	337	569
11	Oct	468	441	330	556
12	Nov	451	429	316	540
13	Dec	476	448	344	571
14
15	Total	5547	5242	3968	6626
16
17
18
19
20

Vim keys need a keyboard. On a phone, tap cells to inspect them.

A live sheet, computed in your browser by the VisiGrid engine. Nothing you type is saved or sent.

From raw data to work you can trust

Start with your files

Open Excel, CSV, and ODS exports
Keep editing and export your results

Make the data usable

Clean, split, and deduplicate with previews
Inspect formulas and trace their inputs

Bring your agent

Connect an MCP agent to the desktop app
Watch edits live and undo each batch

Ready to type in half the time of Google Sheets

Reopening a 140,000-row sheet in the browser, timed from a screen recording at 60 frames a second. The replay below runs in real time.

VisiGrid done at 1.09 s

Cells shown 0.36 s
Screen settled 0.44 s
Ready to type 1.09 s

Google Sheets done at 3.94 s

Cells shown 0.42 s
Ready to type 2.16 s
Screen settled 3.94 s

Ready to type

1.09 s

Google Sheets 2.16 s

Screen settled

0.44 s

Google Sheets 3.94 s

Cells shown

0.36 s

Google Sheets 0.42 s

Arrow key to screen

9 ms

Google Sheets 17 ms

app.visigrid.app and Google Sheets, same laptop, network and workbook, Chrome, 13 October 2026. Medians of 5 reloads. VisiGrid was also faster on every measure with 20-row and 12,000-row sheets. Google Sheets' network route was about 130 ms slower than ours in this run.

AI agents + VisiGrid desktop

See what your AI did. Keep working on it.

A table in a chat is a starting point. In VisiGrid, you can edit the values, inspect the formulas, and let a compatible MCP agent work alongside you.

01

Connect your agent

Use VisiGrid’s MCP server to give a compatible agent access to your desktop workbook. You allow access and can revoke it.
02

Watch the work happen

Ask for a table, a formula, or a cleanup. Agent edits appear in the live grid, where you can inspect the cells and correct the result.
03

Stay in control

Undo each batch of agent edits. Revision checks prevent an agent from overwriting changes you made since its last read.

Connect your AI agent

Use your own agent. VisiGrid provides the workspace.

Don't trust the output. Verify it.

Deterministic recalculation

You control when values update. No silent drift between opens. No ambient state.

Fingerprint & verify

Same inputs + same formulas = same hash. Verify in CI, in audits, in handoffs.

Custom code stays deterministic

Lua functions run in a sandbox. No macros, no side effects. Put logic in an =LUA cell and its code is part of the fingerprint.

How the engine works →

Terminal

$ vgrid sheet verify model.sheet \

--fingerprint v2:24:8f3a1c9e7b2d4a06

Status: Verified ✓

# change one input, verify again

$ vgrid sheet verify model.sheet \

--fingerprint v2:24:8f3a1c9e7b2d4a06

Status: Drifted ⚠

Expected: v2:24:8f3a1c9e7b2d4a06

Current: v2:24:d1e5f8a2c7b39014

# put it back

$ vgrid sheet verify model.sheet \

--fingerprint v2:24:8f3a1c9e7b2d4a06

Status: Verified ✓

Features

Edit many cells at once

Ctrl+Click

Select cells that aren't next to each other. Type once, apply everywhere. Change formatting, enter values, or clear — all at once.

Formula help as you type

Suggestions appear as you write. See parameter names, types, and examples. Spot errors before you finish typing.

Name your ranges

Ctrl+Shift+N

Call it Revenue instead of B2:B100. Formulas become readable. Rename safely across your whole workbook.

Opens your Excel files

Drag in XLSX, XLS, XLSB, or ODS files. Large files load in the background. See exactly what imported and what needs attention.

Themes + custom shortcuts

Pick a theme or build your own. Remap any shortcut. Settings are plain text files you can back up or share.

Optional automation (advanced)

For teams who treat spreadsheets as part of a larger system. Run formulas from the command line, pipe in data, convert formats, and integrate with CI. AI features follow the same philosophy: optional, local-first where possible, and always auditable.

Why people switch

Desktop suites stopped at the ribbon. Cloud spreadsheets stopped at the browser. VisiGrid is a spreadsheet built like a code editor.

Capability	VisiGrid	Excel	Numbers	LibreOffice Calc	Google Sheets
In the browser: ready to type, 140,000-row sheet	Yes : 1.1 s	Not measured	Not measured	Not measured	Partial : 2.2 s
Download size	Yes : under 75 MB	No : a full Office install	Partial : preinstalled on Macs	No : hundreds of MB	Partial : none — cloud app
Keyboard-first, command palette	Yes : every action, no mouse needed	Partial : ribbon + legacy shortcuts	No : mouse-first	Partial : menu-driven	Partial : partial shortcuts
Works with your Excel files	Yes : xlsx, csv, ods, json, tsv	Yes : native	Partial : import / export	Yes	Partial : import / convert
CLI + headless engine	Yes : vgrid — same engine, no GUI	No	No	Partial : limited headless mode	No
Automation & agent API	Yes : local session API + CLI	Partial : VBA / COM, desktop only	Partial : AppleScript	Partial : Basic macros	Partial : Apps Script, cloud
Open source	Yes : AGPL	No	No	Yes : MPL	No
Local-first desktop app — no account, no telemetry	Yes	No : account-centric	Partial : local, Mac only	Yes	No : account required
Real-time collaboration	Partial : in the browser app; not in the desktop app	Yes : Microsoft 365	Yes : iCloud	No	Yes

Browser timings from the 13 October 2026 run above. Download size from the current release. Competitor details last verified July 2026.

Download

Latest release

macOS Beta · Universal

Windows Alpha · x64

Linux Beta · x86_64

Or install via package manager:


brew install --cask visigrid/tap/visigrid


yay -S visigrid-bin

On iPad or iPhone: VisiGrid on the App Store, $9.99 once for both (iPad · iPhone).

Or use VisiGrid in your browser — no download required.

Create free account Open Web App

Advanced capabilities are available for work that needs scale, history, and accountability.

Open Source

VisiGrid is open source under the AGPLv3 license. View the code, report bugs, submit patches. Built for users who want control over their tools.

Commercial licensing available for proprietary and hosted use. Learn more

Free desktop app

Keyboard first

Files stay on your machine (desktop)

Star on GitHub Read the docs Join the community

Stay updated

FAQ

Is VisiGrid free?

Yes. The desktop app is free and open source under the AGPLv3, and the browser app at app.visigrid.app is free with an account. The iPad and iPhone apps are a one-time $9.99 App Store purchase, and one purchase covers both.

Will it open my Excel files?

Yes. It opens .xlsx workbooks with every sheet, formula and format, plus .xls, .xlsb, .ods, .csv, .tsv, .json and .parquet. It saves back to .xlsx with formulas kept as formulas, so the file still works for whoever sent it. Charts and macros do not come through.

How is it different from Excel?

It works like a code editor: every action is in a command palette, vim keys are there if you want them, and a trace shows where any number comes from. An AI agent can work in your open sheet, with each batch of its edits undoable and stale writes refused. The vgrid CLI runs the same engine in scripts and CI. What it lacks: VBA, and charts in the desktop app (the browser app draws them).

Will my Excel macros work?

No. There is no VBA and no macro recorder. VisiGrid uses Lua instead. In the desktop app and the CLI you can write your own functions in a functions.lua file and call them from any formula, or put code in a =LUA cell that travels with the workbook. Existing macros have to be rewritten.

Do I need an account?

Not for the desktop app, which runs locally without a login. The browser app needs a free account, so your sheets can be saved and shared.

Does my data stay on my machine?

With the desktop app, yes: your files stay on your computer and no cloud is needed. Sheets you create in the browser app are stored in your VisiGrid account, so they can be shared and edited together.

Is there telemetry?

Not in the desktop app — no telemetry, no usage data, and update checks are anonymous. The web app at app.visigrid.app does measure which features get used, so we can tell what works and what is broken; it never receives the contents of your spreadsheets. The full breakdown is in the privacy policy.

What platforms are supported?

Desktop: macOS (Beta), Linux (Beta) and Windows (Alpha). Browser: app.visigrid.app. iPad and iPhone: on the App Store. Every desktop download includes the vgrid CLI.

How do I get the CLI?

The vgrid CLI comes with every desktop download: install with Homebrew (brew install --cask visigrid/tap/visigrid), winget (winget install VisiGrid.VisiGrid) or the AUR, or download from GitHub. It runs without the GUI, and reads and writes CSV, TSV, JSON, XLSX, Parquet, DuckDB and .sheet files.

	A	B
1	Model	Value
2	Units	1200
3	Price	49
4	Revenue	58800
5	Discount	0.1
6	Net revenue	52920
7	Unit cost	18
8	Cost of goods	21600
9	Gross profit	31320
10	Margin %	59.20
11
12
13

1	apple	42	true
2	orange	17	false
3	banana	89	true

	A	B
1	Vendor	Amount
2	Hetzner	55
3	Figma	15
4	Delta	412
5	GitHub	21
6	Marriott	289
7	Cloudflare	25
8	Uber	39
9	Notion	10
10
11
12
13

A free, open source spreadsheet built for the AI era.

From raw data to work you can trust

Start with your files

Make the data usable

Bring your agent

Ready to type in half the time of Google Sheets

See what your AI did. Keep working on it.

Connect your agent

Watch the work happen

Stay in control

Don't trust the output. Verify it.

Deterministic recalculation

Fingerprint & verify

Custom code stays deterministic

Features

Edit many cells at once

Formula help as you type

Name your ranges

Opens your Excel files

Themes + custom shortcuts

Optional automation (advanced)

Why people switch

Download

Open Source

Stay updated

FAQ

A free, open source spreadsheet
built for the AI era.