Free and open first
Best AI Prompt Management Software in 2026
AI prompt management software helps you organize and work with prompts across development workflows. Compared on prompt testing, prompt observability and prompt version history, these entries also let you weigh access controls, API access and deployment controls. Free plans, included seats and paid-from pricing add details about access and cost. Vellum, Promptfoo and PromptHelm are among the options to compare, alongside Agenta and Braintrust. Consider which testing and tracking capabilities suit your work, and how the listed controls and plan details fit your needs.
- 25 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
Promptfoo
Free plan Open source APILinuxMac+3Promptfoo combines prompt evaluation with red-team testing and a broad provider and integration list.
- 4
Vellum
Free plan Open source AndroidAPIExtension+5Vellum offers a personal assistant with saved context, skills, integrations and approval controls.
- 5
Braintrust
Free plan APISelf-hostedWebBraintrust combines production trace inspection with dataset evaluations and prompt iteration.
- 6
HoneyHive
Free plan APISelf-hostedWebHoneyHive covers trace inspection, evaluations, live monitoring, and version experiments for AI agents. Teams should compare the free plan’s limits with their event volume and retention needs.
- 7
ChainForge
Free plan Self-hostedWebChainForge supports structured prompt experiments with comparison, scoring, and plotting features.
- 8
Maxim AI
Free plan APISelf-hostedWebMaxim AI brings prompt work, agent evaluation, and production observability into one platform.
- 9
PromptHelm
Free plan AndroidAPIiPhone+2PromptHelm combines prompt lifecycle tools with provider, cost, and performance monitoring.
- 10
Apastra
Free plan Self-hostedApastra brings prompt versioning and evaluation checks into a local-first workflow. Its main prerequisite is a user-supplied executable harness for model calls.
- 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
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.
- 14
PromptOps Manager
Free plan APISelf-hostedWebPromptOps Manager provides a self-hosted workflow for prompt versions, tests, and environment promotion.
- 15
Prompt Manage
Free plan APIWebPrompt Manage combines prompt organization, version history, and team permissions with free and paid plans. Teams should compare the monthly run and member limits with their needs.
- 16
ProofHound
Free plan APISelf-hostedWebChoose ProofHound for LLM classification workflows that need prompt iteration, auditable experiments, and controlled deployment.
- 17
PromptLens
Free plan WebPromptLens brings prompt management, evaluations, and observability together for LLM workflows.
- 18
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.
- 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
PromptVersions
Free plan WebPromptVersions combines prompt history, testing, deployment environments, and team roles in a web workspace.
- 22
MLflow Prompt Registry
Free plan Web - 23
ANTS Platform
Paid APIWebANTS Platform brings AI discovery, usage attribution, observability, and governance into one web and API service. The credit model and listed integration availability should shape plan selection.
- 24
InsightPrompts
Paid APILinuxMac+3InsightPrompts combines prompt authoring, evaluation, experimentation, and governance in one platform.
- 25
PromptWorks
Paid APISelf-hostedWebPromptWorks brings version management, batch evaluation, and model records into one workspace. Teams considering self-hosting should account for its documented PostgreSQL and Redis components.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
More in AI Tools
- AI Proposal Generators26
- AI Quiz Generators29
- AI Readability Checkers26
- AI Recruiting Assistants30
- AI Research Assistants28
- AI Resume Builders80
- AI Reverse Image Search Tools31
- AI Review Response Generators25
- AI RFP Response Software33
- AI Roleplay Chatbots46
- AI Sales Assistants34
- AI Sales Call Analysis Software23