Adamant AI Spreadsheet Agent

Adamant AI Spreadsheet Agent is a standalone app for building, transforming, and analyzing spreadsheets, with document and PDF work in the same tool. It is best suited to people who want an offline, on-device option; the main caveats are its alpha status and strict operating-system requirements.

Overview

Adamant’s local runtime processes prompts and files on the device and works without an internet connection. That makes it a practical choice for offline work and for users who do not want files transmitted to a cloud service. Cloud processing is optional; the maker describes that runtime as using zero-retention infrastructure with no profiling.

The app reaches beyond spreadsheets: it can summarize, draft, and edit local documents, and answer questions across PDFs. On Mac, it can also perform browser and desktop tasks through visible, step-by-step actions. This wider scope is useful for people who want one agent for several kinds of computer work, though the alpha label is a reason to weigh maturity before relying on it.

Key features

Spreadsheet building and analysis

Adamant can build and analyze spreadsheets and transform tables; the Windows version also works with tabular data. That range covers both creating spreadsheet work and making sense of existing data. No spreadsheet-specific limits are stated for its free alpha, so it is difficult to judge how far a sustained workload can go.

Local and optional cloud runtimes

Local processing keeps prompts and files on the device and remains available offline. Users who need cloud processing can opt in, with the maker describing zero retention and no profiling. The choice between on-device and cloud use is useful, but the privacy distinction matters: only the local runtime is described as keeping prompts and files on the device.

Other computer work

Document summarizing, drafting, editing, and PDF questions make Adamant more than a spreadsheet-only tool. Mac users also get browser and desktop tasks with visible, step-by-step actions. Those additional capabilities broaden its appeal, but the browser and desktop tasks are described for Mac, not Windows.

Pricing

Free alpha: free. The plan is free and no spreadsheet-specific limits are stated. That makes it a straightforward option for trying the product without a paid commitment, but alpha status and the absence of stated spreadsheet caps leave uncertainty about how dependable or extensive its use will be over time.

Platforms

Adamant is a standalone app for macOS and Windows. The Mac page requires macOS 26 or later, a significant constraint for anyone using an earlier release. Windows support starts at Windows 10 or later; during installation, Windows may show a SmartScreen prompt while code signing rolls out.

Who it's for

Adamant suits users who want spreadsheet building, transformation, and analysis alongside local document and PDF work, especially if offline use and on-device processing matter. It is a less compelling fit for anyone who needs a mature, non-alpha product, uses a Mac older than macOS 26, or wants browser and desktop tasks on Windows.

Pros and cons

• Pros: Local prompts and files stay on the device, and the local runtime works offline—useful for privacy-conscious or disconnected work.
• Pros: Spreadsheet tasks sit alongside document editing, PDF questions, and, on Mac, visible browser and desktop actions.
• Pros: The free alpha has no stated spreadsheet-specific limits, so there is no listed usage cap to weigh before trying it.
• Cons: Alpha status makes it a less suitable choice for users who need a clearly mature tool.
• Cons: macOS 26 or later excludes Mac users on older operating systems.
• Cons: Windows installation may trigger a SmartScreen prompt while code signing rolls out.

Alternatives

For a broader comparison, browse AI Spreadsheet Tools or Spreadsheet apps.

Choose Quadratic if its listed support for web, mobile, API, or self-hosted use better fits your platform needs; its Personal plan has limited AI usage, sharing, files, connections, and support.

SheetFactorys is another freemium spreadsheet option, with a free plan and free trial.

Grist may suit users who want web or self-hosted access and a free plan with unlimited documents, up to 5,000 records per document, 30-day snapshot history, and 100 lifetime AI credits.

remio is worth considering for a free plan with 500 AI credits per month, unlimited webpage capture, unlimited local file parsing, and support for Slack, Gmail, and Outlook.

Shortcut offers a free plan with 20 free weekly credits, while its Pro plan is $100 a month, billed annually.

Ajelix has web and extension platforms and paid plans starting at $39 a month, billed monthly, with a 20MB maximum file size on Lite.

CleanSheet AI is a web-based option whose free plan caps usage at 5 files per month, 10 rows per file, and 5 AI analyses per month.

Excel AI App is another web-based freemium choice, with 3,000 AI credits refreshed every 30 days and Excel or CSV uploads up to 5MB on its free plan.

Verdict

Choose Adamant if you want a free spreadsheet agent that can work offline, keep prompts and files on-device, and handle documents and PDFs as well. Its chief advantage is that combination of spreadsheet work and local processing; its chief drawback is alpha status, compounded for Mac users by the macOS 26 minimum. If either maturity or operating-system fit is essential, consider another tool.