Gridwire
Open source · MIT · self-hostable

Turn any spreadsheet into a production API.

Upload Excel or CSV, map your fields with a guided wizard, and ship a secure, documented REST API in minutes — with versioning, masking, and team access built in.

Parse anything

Multi-tab Excel, CSV, formulas and computed values. Macros are detected and safely ignored.

Versioning & diffs

Every upload is a version. Baseline your format and get warned when columns or types drift.

Mask & hash

Flag PII and apply masking or hashing per field — enforced on every API response.

Scoped API keys

Generate, revoke, and audit keys. Every call is logged for consumption tracking.

Connectors

Pull files from SFTP, NFS, network shares, or watched folders via the companion worker.

Multi-tenant

Organizations with owner/admin/member/viewer roles and full data isolation.

Deploy it for your whole company.

Gridwire is fully open source. Self-host it, own your data, and give every team a safe way to expose spreadsheet data as APIs.

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