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Timescale alternatives (2026)

Timescale: Time-series data without leaving Postgres.

Its Catch: License first: TimescaleDB is split — the core is Apache-2.0, but features in the tsl directory (compression, continuous aggregates and more) are under the Timescale License (TSL), which is source-available and bars offering TimescaleDB as a database service.

Below: 6 free or free-tier tools from the same category (Postgres tools), free and open source first, then the closest match by shared tags. Each keeps its own Catch.

  1. 1.SupabaseOpen-source Firebase alternative built on Postgres

    Free / OSS · Freemium · 112k GitHub stars

    VerdictThe Firebase alternative for developers who want real Postgres.

    CatchThe all-in-one convenience creates dependency. Complex queries hit performance limits. Self-hosting requires significant operational knowledge.

  2. 2.PGliteApache-2.0 Postgres compiled to WASM for browser, Node, Bun and Deno

    Free / OSS · Apache-2.0 · 16.2k GitHub stars

    VerdictThe easiest way to get real Postgres in tests, the browser or a local-first app — not your production server.

    CatchIt is single user and single connection, so it is not a replacement for a Postgres server behind a multi-user backend. Performance and memory are bounded by the WASM runtime, and only the extensions the project has ported can be loaded. It is still 0.x, so expect API changes between minor versions.

  3. 3.pgcliBSD-3-Clause Postgres CLI with smart autocompletion

    Free / OSS · BSD-3-Clause · 13.4k GitHub stars

    VerdictInstall it once and you will stop using bare psql for interactive work.

    CatchIt is a Python app, so startup is slower than psql and you need a Python environment. Some psql meta-commands and scripting behaviours differ, so keep psql for scripts. Huge schemas can make the completion refresh slow.

  4. 4.CitusAGPL-3.0 Postgres extension for distributed tables

    Free / OSS · AGPL-3.0 · 12.8k GitHub stars

    VerdictThe most Postgres-native way to scale out — pick your shard key carefully.

    CatchSharding means choosing a distribution column well; a poor choice makes cross-shard queries slow. AGPL-3.0 matters if you modify Citus and offer it as a service. Not every managed Postgres lets you install it, so you often self-host or use Azure's managed version. Cluster ops are more involved than one Postgres box.

  5. 5.usqlMIT universal psql-style CLI for SQL and NoSQL databases

    Free / OSS · OSS/MIT · 10.1k GitHub stars

    VerdictOne CLI for every database — perfect for ops and scripting across engines.

    CatchStill 0.x. Some drivers are only included in certain build tags, so check your binary supports the database you need. Completion and meta-commands are not as deep as pgcli or the native clients.

  6. 6.Parse ServerApache-2.0 self-hosted backend on Node.js with MongoDB or Postgres

    Free / OSS · Apache-2.0 · 21.4k GitHub stars

    VerdictA proven, fully self-hosted backend-as-a-service — best when you want the Parse SDKs and model.

    CatchIt is a mature, opinionated object model rather than plain SQL, so it feels dated next to Supabase or PocketBase, and complex relational queries can fight the abstraction. You operate the database, scaling and backups yourself. Releases are frequent, so pin versions and read the changelog before major upgrades.

FAQ

What are the best free alternatives to Timescale?
Supabase, PGlite, pgcli, Citus, usql. All are reviewed on Stack Gems in the same category (Postgres tools); 6 free or open source.
What is the catch with Timescale?
License first: TimescaleDB is split — the core is Apache-2.0, but features in the tsl directory (compression, continuous aggregates and more) are under the Timescale License (TSL), which is source-available and bars offering TimescaleDB as a database service.
Is there an open-source alternative to Timescale?
Yes: Supabase (Freemium), PGlite (Apache-2.0), pgcli (BSD-3-Clause), Citus (AGPL-3.0).

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