Free tier only
Free Alternatives to Filament by Galaxy (2026)
Filament by Galaxy has a free tier, but if it does not fit, Here are 8 Data & Analytics tools you can start using for free, ranked by how closely they match Filament by Galaxy, with what each charges once you outgrow the free plan.
Closest free matches
Ranked by shared use cases, audience and stack with Filament by Galaxy. Every tool here lists a free plan.

Apache Kafka is an open source distributed event streaming platform used for data pipelines, streaming analytics and integration, including the Kafka Connect framework and its connectors.
Omnigraph is Modern Relay's MIT-licensed, Rust graph database for AI agents: the graph lives as open Lance files in S3 or local storage, agents write on reviewable branches, every write is schema-checked, and one query mixes graph traversal with vector and keyword search. Free; managed Cloud in preview.
KNIME Analytics Platform is a free, open source visual tool for building data science workflows, with paid KNIME Hub plans for sharing and running them, starting at 99 euros per month.
Trigger.dev is an open-source (Apache 2.0) platform for writing long-running AI agents and background workflows in TypeScript, with retries, queues, realtime streaming, observability and managed or self-hosted infrastructure.
Ultracite is an open-source, zero-configuration preset for Biome, Oxlint and ESLint. It lints and formats JavaScript and TypeScript code and checks each edit an AI coding agent makes against a strict, shared set of rules.
Databox is an analytics platform that connects 130+ data sources, defines metrics once in a semantic layer and exposes them to people and AI agents. Its new open-source Databox CLI brings the Databox API to the terminal, scripts and coding agents.
Overmind is an open-source (AGPL-3.0) platform that turns AI agents' production traces into datasets, evals and fine-tuned open models you own, with observability, an MCP server and a hosted console.
shim-cli is a free, Apache-2.0 command-line tool that hooks into Claude Code, Codex, Copilot CLI and VS Code to find secrets and personal data in what an agent sends, mask it where the client allows, and report session tokens and cost.
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Free alternatives to Filament by Galaxy: FAQ
Quick answers to common questions
Is Filament by Galaxy free?
Yes, Filament by Galaxy offers a free tier. The tools below are alternatives that are also free to start.
What is the best free alternative to Filament by Galaxy?
Apache Kafka is the closest free match by shared use cases, audience and stack. Omnigraph, KNIME Analytics Platform and Trigger.dev are the next closest.
How were these free alternatives to Filament by Galaxy chosen?
Tools are ranked by similarity to Filament by Galaxy (shared use cases, target audience, tech stack and pricing model) and filtered to those whose listing shows a free tier, freemium plan or open-source edition. Where fewer than 2 close matches exist, popular free Data & Analytics tools fill the list and are labelled as such.
Building a free Data & Analytics tool?
List it free. Tools with a free tier appear on pages like this one.