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Keikai Spreadsheet

Converts Excel workbooks into embeddable web spreadsheet components that keep the file's formulas, styles and filters, controlled through a Java API.

Actively maintained

Developer toolsFor developersOpen source
keikai.io ↗XFacebookLaunched on Product Hunt · Apr 10, 2025
Open keikai.ioAlternativesSet it up for my team
Keikai Spreadsheet: data, price, alternatives
At a glancechecked Oct 20, 2026

≈ 20visits/mo

Use not read yet · estimate, read Oct 20, 2026

For
Java developers embedding Excel-like spreadsheets into web applications for business end users
Activity
Actively maintainedrelease 13 days ago · site updated 7 weeks ago
How it runs
API
Used for
  • Convert existing Excel files into web applications
  • Embed spreadsheet views inside a Java web app
  • Let business users build forms and reports in Excel
read off keikai.io on Oct 20, 2026
Worth knowingcomputed from what we read · each with its source
  • Publishes llms.txt, a file written for AI assistantskeikai.io ↗
  • Launched on Product Hunt on Apr 10, 2025Product Hunt ↗
Pricingpricing page, read Oct 20, 2026

Price not read

pricing page

The companyeach fact with its source · read Oct 20, 2026
  • HeadquartersTaipei, Taiwanper their About page
Your datawhat they publish, each line with its page · read Oct 20, 2026

These are Keikai Spreadsheet's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

Most used in Developer toolsby use, among tools still maintained — this tool shares no tags yet

Figure and bar: visits/mo, estimate · year: online since

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Questions this page answers
  • What is Keikai Spreadsheet?

    Converts Excel workbooks into embeddable web spreadsheet components that keep the file's formulas, styles and filters, controlled through a Java API. It is listed in the Atlas under Developer tools.

  • Who is Keikai Spreadsheet for?

    Java developers embedding Excel-like spreadsheets into web applications for business end users

  • Is Keikai Spreadsheet still maintained?

    Actively maintained: release 13 days ago · site updated 7 weeks ago.

  • Is Keikai Spreadsheet safe?

    We do not audit vendors. What Keikai Spreadsheet publishes, read 2026-10-20: GDPR stated on its privacy policy.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk