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Comparison · Infra & APIs

Supabase vs Windmill

A side-by-side editorial comparison of Supabase and Windmill — release velocity, themes, recent moves, and the top alternatives to consider.

Supabase vs Windmill: at a glance

FeatureSupabaseWindmill
SectorInfra & APIs, DevOpsInfra & APIs
Velocity score0.07.5
Sparks · 30d01
Top themessecure-defaults, breaking-changes, row-level-security, postgrestworkflow-automation, ai-agents, developer-tools, open-source
Last editorial update6h ago1h ago
WebsiteVisit →Visit →

What is Supabase?

Supabase is closing its most-exploited default: tables stop being public unless you say so.

The last month is dominated by tightening defaults rather than adding surface. New tables in the public schema will no longer be auto-exposed to the Data and GraphQL APIs, pg_graphql stops being enabled by default, and the OAuth token endpoint is being corrected to return 200 per OAuth 2.1. Alongside that, custom OAuth/OIDC providers landed for Auth and an RLS Tester entered preview.

Read the full Supabase trajectory →

What is Windmill?

A workflow engine where the AI builds the scripts and the enterprise gates come down

Windmill's July stream is dominated by AI sessions, now in beta and on by default: each session ties a chat to a workspace or fork with a live preview, builds scripts, flows and apps as reviewable drafts, and runs many in parallel. Supporting work landed around it — file attachments in chat, visible web-search sources, in-app git-to-Windmill sync, and schema contracts that warn when a consumer script drifts from a producer's materialized table.

Read the full Windmill trajectory →

Supabase vs Windmill: editorial side-by-side

Supabase logo
Supabase
INFRA · APISDEVOPS
0.0

Supabase is closing its most-exploited default: tables stop being public unless you say so.

◆ Current state

The last month is dominated by tightening defaults rather than adding surface. New tables in the public schema will no longer be auto-exposed to the Data and GraphQL APIs, pg_graphql stops being enabled by default, and the OAuth token endpoint is being corrected to return 200 per OAuth 2.1. Alongside that, custom OAuth/OIDC providers landed for Auth and an RLS Tester entered preview.

◆ Where it's heading

Supabase is paying down the security cost of its own convenience. Auto-exposing every public-schema table made the product fast to start with and easy to misconfigure; the fix is explicit Postgres grants, staged over six months from new projects in April to all existing projects on October 30. The RLS Tester is the same theme from the other side — the auto-exposure default only worked if row-level security was correct, and until now there was no way to check.

◆ Prediction

Expect the remaining rollout dates to hold and more of the developer experience to be rebuilt around explicit grants, with the RLS Tester graduating from preview as it becomes the tool people need to verify the new model. The October cutover for existing projects is the moment where this stops being an announcement and starts breaking things.

W
Windmill
INFRA · APIS
7.5

A workflow engine where the AI builds the scripts and the enterprise gates come down

◆ Current state

Windmill's July stream is dominated by AI sessions, now in beta and on by default: each session ties a chat to a workspace or fork with a live preview, builds scripts, flows and apps as reviewable drafts, and runs many in parallel. Supporting work landed around it — file attachments in chat, visible web-search sources, in-app git-to-Windmill sync, and schema contracts that warn when a consumer script drifts from a producer's materialized table.

◆ Where it's heading

Two moves are running together. The authoring model is shifting from writing scripts to reviewing generated ones, with the diff drawer and draft state as the safety mechanism rather than trusting the model outright. Meanwhile the commercial line is being redrawn: BigQuery and Snowflake left the Enterprise tier for community edition, including self-hosted. Windmill is trading connector exclusivity for adoption while the AI layer becomes the thing worth paying for.

◆ Prediction

Expect AI sessions to leave beta with governance around it — who can deploy a generated draft, and what an autonomous session may touch — since the draft-and-diff design already anticipates that review step.

Alternatives to Supabase and Windmill

Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Supabase or Windmill.

See all Supabase alternatives → · See all Windmill alternatives →

Recent activity from Supabase and Windmill

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 6d agoWindmillBigQuery and Snowflake available in the community edition
  2. 9d agoWindmillAI sessions (beta)
  3. 10d agoWindmillAttach text files to AI chat messages
  4. 11d agoWindmillWeb search sources in AI chat
  5. 15d agoWindmillAutomatic git-to-Windmill sync
  6. 26d agoWindmillSchema contracts for pipeline consumers
  7. 2mo agoSupabaseDeprecation Notice: Dropping Support for Node.js 20
  8. 2mo agoSupabaseDeveloper Update - May 2026
  9. 3mo agoSupabaseBreaking Change: OAuth token endpoint will return HTTP 200 instead of 201
  10. 3mo agoSupabaseBreaking Change: Tables not exposed to Data and GraphQL API automatically
  11. 3mo agoSupabaseFragment of the no-auto-expose announcement
  12. 3mo agoSupabaseFeature Preview: RLS Tester

Frequently asked questions

What is the difference between Supabase and Windmill?

They serve adjacent needs but don't currently overlap on shipped themes. Windmill is currently shipping more aggressively (velocity 7.5 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is Supabase better than Windmill?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Windmill is currently shipping more aggressively (velocity 7.5 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.

What are the best alternatives to Supabase?

Top Supabase alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Supabase alternatives" section above for the current picks, or visit /alternatives/supabase for the full list with editorial commentary on each.

What are the best alternatives to Windmill?

Top Windmill alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Windmill alternatives" section above for the current picks, or visit /alternatives/windmill for the full list with editorial commentary on each.