Free and open first
Best Prompt Management Software in 2026
Prompt management software helps teams organize prompts and handle them across development work. Compared on prompt templates, testing, and versioning, these entries also show access controls, approval workflows, API or SDK access, and model provider support. Free-plan availability and paid-from pricing offer cost details to consider alongside those capabilities. Vellum, PromptHelm, and Agenta are among the named options, as are Langfuse, PromptDocker, PromptForge, PromptHub, and PromptLayer. Weigh the listed provider support and controls against how your team needs to create, review, test, and manage prompts.
- 26 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
Agenta
Free plan Open source APISelf-hostedWebAgenta combines agent-building, automation, and run observability, with both cloud and self-hosted options.
- 2
Langfuse
Free plan Open source APILinuxSelf-hosted+1Langfuse brings tracing, prompt workflows, and evaluation features into one AI engineering platform, with both hosted and self-hosted options.
- 3
Vellum
Free plan Open source AndroidAPIExtension+5Vellum offers a personal assistant with saved context, skills, integrations and approval controls.
- 4
Braintrust
Free plan APISelf-hostedWebBraintrust combines production trace inspection with dataset evaluations and prompt iteration.
- 5
Impromptо
Free plan APIWebImpromptо brings prompt testing, version history, team roles, and API deployment together. Its Free limits matter for frequent multi-model testing, while approval workflows are not yet available.
- 6
PromptFluent
Free plan ExtensionLinuxMac+2PromptFluent combines prompt creation and reuse with team governance and usage analytics.
- 7
PromptHelm
Free plan AndroidAPIiPhone+2PromptHelm combines prompt lifecycle tools with provider, cost, and performance monitoring.
- 8
Prompt Assay
Free plan APIWebPrompt Assay combines prompt authoring, versioning, testing, and multi-model comparison, with support for Agent Skills.
- 9
Modular Prompt Library
Free plan WebChoose Modular Prompt Library if you need a web workspace for reusable prompts, revisions, team review, and side-by-side model testing.
- 10
PromptDocker
Free plan APIWeb - 11
Prompteams
Free plan APIWebChoose Prompteams if your team needs shared prompt versioning, scenario testing, and API retrieval in one system.
- 12
PromptLayer
Free plan APISelf-hostedWebPromptLayer brings prompt editing, evaluation, and operational monitoring into one workflow, with collaboration features for technical and non-technical contributors.
- 13
Prompt Bunker
Free plan WebPrompt Bunker links prompt organization with tasks, version history and shared workflow stages. The free tier has usage limits, while Pro pricing is per workspace each month.
- 14
PromptForge
Free plan APIWebPromptForge focuses on prompt organization, version control, and API delivery rather than AI execution.
- 15
PromptHub
Free plan APIWebPromptHub brings prompt versioning, evaluation, and deployment options into one platform. Its free plan is limited to public prompts, while private collaboration requires a paid plan.
- 16
PromptOps Manager
Free plan APISelf-hostedWebPromptOps Manager provides a self-hosted workflow for prompt versions, tests, and environment promotion.
- 17
PromptMetrics
Free plan APILinuxMac+3PromptMetrics combines prompt management with logging, evaluations, agent traces, and compliance scanning. Its self-hosted deployment and operational security guidance are central considerations.
- 18
ProofHound
Free plan APISelf-hostedWebChoose ProofHound for LLM classification workflows that need prompt iteration, auditable experiments, and controlled deployment.
- 19
SpacePrompts
Free plan APIExtensionWebPick SpacePrompts if you want a place to manage prompt versions, test prompts, and use browser extensions or an API.
- 20
Verdonz
Free plan APISelf-hostedWebVerdonz combines governed metric queries with evidence-oriented agents and controls for connected data.
- 21
PromptLens
Free plan WebPromptLens brings prompt management, evaluations, and observability together for LLM workflows.
- 22
PromptSource
Free plan APISelf-hostedWebPromptSource combines a prompt editor, dataset views, an API, and a substantial English prompt collection. Developers should note its Python requirement and the limits of the hosted Sourcing mode.
- 23
PromptVersions
Free plan WebPromptVersions combines prompt history, testing, deployment environments, and team roles in a web workspace.
- 24
Endprompt
Free trial APIWebEndprompt combines prompt lifecycle controls, testing, observability, caching, and typed endpoints in one service.
- 25
Pezzo
Paid APISelf-hostedWebPezzo combines prompt lifecycle tools with request tracing and metrics, and supports local self-hosting or managed cloud hosting.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
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