Conversion GemsConversion Gems

Free AI coding tools

85 AI development tools we review offer a free plan. Filter and sort the table, or open any tool's review.

Scored by the Conversion Gems editorial team · reviewed June 2026 85 tools with a free plan · median paid plan $25/mo
85 tools
DetailsPricingFree planFree trialWhat the plan includesReview
GitHub8.8 / 10Freemium$4/moper seatYesYesFree; Team $4/user/mo; Enterprise $21/user/moReview GitHub
Vercel AI SDK8.7 / 10FreeFreeYes—FreeReview Vercel AI SDK
Vercel AI8.6 / 10FreeFreeYes—Free (MIT OSS; pay your LLM provider separately)Review Vercel AI
Ollama8.5 / 10Free$20/moYes—Free (MIT); optional cloud Pro from $20/moReview Ollama
Langfuse8.4 / 10Freemium$29/moYes—Free (50K units/mo); Core $29/moReview Langfuse
Axolotl8.3 / 10FreeFreeYesYesFree (open-source, Apache 2.0)Review Axolotl
PEFT8.3 / 10FreeFreeYes—Free (Apache-2.0, open-source)Review PEFT
Pgvector8.3 / 10FreeFreeYes—Free (open-source extension)Review Pgvector
Pinecone8.3 / 10Freemium$20/moYesYesFree tier; paid from $20/mo (Builder)Review Pinecone
Ragas8.3 / 10FreeFreeYes—Free (open source, pip install)Review Ragas
Groqcloud8.2 / 10Freemium~$0.05approximateYesYesFree tier; paid from $0.05/M tokensReview Groqcloud
Portkey8.2 / 10Freemium$49/moYesYesFree (10K logs/mo); Production $49/moReview Portkey
Supabase8.2 / 10Freemium$25/moYesYesFree tier; Pro from $25/mo per projectReview Supabase
Weaviate8.2 / 10Freemium$45/moYesYesFree tier; Flex from $45/moReview Weaviate
Bentoml8.1 / 10Freemium~$0.14approximateYesYesFree (OSS self-hosted); cloud from ~$0.14/1M tokensReview Bentoml
Dspy8.1 / 10FreeFreeYes—Free (MIT open source)Review Dspy
Litellm8.1 / 10Freemium$250/moYesYesFree OSS (MIT); Enterprise from $250/moReview Litellm
Phoenix Arize8.1 / 10Freemium$50/moYesYesFree (OSS / self-host); cloud from $50/moReview Phoenix Arize
Promptfoo8.1 / 10FreeCustomcontact salesYes—Free (MIT); Enterprise customReview Promptfoo
Qodo8.1 / 10Freemium$30/moper seatYesYesFree tier; paid plans from $30/user/monthReview Qodo
Chroma8.0 / 10FreemiumFreeYesYesFree (OSS); Cloud free tier + usageReview Chroma
Cursor8.0 / 10Freemium$20/moYesYesFree tier; Pro from $20/moReview Cursor
Guidance8.0 / 10FreeFreeYes—Free (open-source Python library)Review Guidance
llama.cpp8.0 / 10FreeFreeYes—Free (MIT, open-source)Review llama.cpp
Milvus Cloud8.0 / 10FreemiumFreeYes—Free (5GB); serverless pay-as-you-goReview Milvus Cloud
Qdrant8.0 / 10Freemium~$65/moapproximateYes—Free tier; Cloud pay-as-you-go (~$65+/mo)Review Qdrant
Unstructured8.0 / 10Freemium~$0.03approximateYesYesFree (OSS + 15K pages); $0.03/page afterReview Unstructured
Weaviate Cloud8.0 / 10Freemium~$45/moapproximateYes—Free sandbox; paid from ~$45/mo (Flex)Review Weaviate Cloud
Zilliz Cloud8.0 / 10Freemium~$70/moapproximateYesYesFree tier; Dedicated from ~$70/moReview Zilliz Cloud
Apache Tika7.9 / 10FreeFreeYes—Free (Apache 2.0, open-source)Review Apache Tika
Codeium7.9 / 10Freemium$20/moYesYesFree; Pro from $20/moReview Codeium
Continue7.9 / 10Freemium$20/moper seatYesYesFree (OSS); Hub teams from $20/seat/moReview Continue
Helicone7.9 / 10Freemium$79/moYesYesFree (10K req/mo); Pro $79/moReview Helicone
Milvus7.9 / 10FreeFreeYes—Free (open-source); Zilliz Cloud from free tierReview Milvus
Windmill7.9 / 10Freemium$120/moYesYesFree (OSS self-hosted); Enterprise from $120/moReview Windmill
Zed7.9 / 10Freemium$10/moYesYesFree tier; Pro from $10/moReview Zed
Convex7.8 / 10Freemium$25/moYesYesFree tier; Pro from $25/dev/moReview Convex
Modal7.8 / 10Freemium$30/moYesYesFree (Starter, $30/mo credits); Team $250/moReview Modal
trigger.dev7.8 / 10Freemium$10/moYes—Free; Hobby $10/mo; Pro $50/moReview trigger.dev
Trl7.8 / 10FreeFreeYes—Free (Apache 2.0, open-source)Review Trl
Ellipsis7.7 / 10FreemiumFreeYesYesFree for public repos; paid per developerReview Ellipsis
Kestra7.7 / 10FreemiumCustomcontact salesYes—Free OSS (Apache 2.0); Enterprise/Cloud paid (custom)Review Kestra
Langsmith7.7 / 10Freemium$39/moper seatYesYesFree tier; Plus from $39/seat/moReview Langsmith
Llamaparse7.7 / 10Freemium$50/moYes—10K free credits/mo; Starter $50/moReview Llamaparse
MindsDB7.7 / 10Freemium$9.95/moYesYesFree tier; Pro from $9.95/moReview MindsDB
Prefect7.7 / 10Freemium$100/moYesYesFree OSS + Cloud Hobby; Cloud Starter from $100/moReview Prefect
Trulens7.7 / 10FreeFreeYes—Free (open source); enterprise via SnowflakeReview Trulens
Autify7.6 / 10Freemium$99/moYesYesFree tier; paid plans from $99/monthReview Autify
Corti7.6 / 10FreemiumFreeYesYesFree credits; paid plans availableReview Corti
Momentic7.6 / 10FreemiumCustomcontact salesYes—Contact sales for enterprise plansReview Momentic
GitHub8.8 / 10
Freemium · $4/mo · Free trial

Free; Team $4/user/mo; Enterprise $21/user/mo

Free

Free

Vercel AI8.6 / 10
Free

Free (MIT OSS; pay your LLM provider separately)

Ollama8.5 / 10
Free · $20/mo

Free (MIT); optional cloud Pro from $20/mo

Langfuse8.4 / 10
Freemium · $29/mo

Free (50K units/mo); Core $29/mo

Axolotl8.3 / 10
Free · Free trial

Free (open-source, Apache 2.0)

PEFT8.3 / 10
Free

Free (Apache-2.0, open-source)

Pgvector8.3 / 10
Free

Free (open-source extension)

Pinecone8.3 / 10
Freemium · $20/mo · Free trial

Free tier; paid from $20/mo (Builder)

Ragas8.3 / 10
Free

Free (open source, pip install)

Groqcloud8.2 / 10
Freemium · ~$0.05 · Free trial

Free tier; paid from $0.05/M tokens

Portkey8.2 / 10
Freemium · $49/mo · Free trial

Free (10K logs/mo); Production $49/mo

Supabase8.2 / 10
Freemium · $25/mo · Free trial

Free tier; Pro from $25/mo per project

Weaviate8.2 / 10
Freemium · $45/mo · Free trial

Free tier; Flex from $45/mo

Bentoml8.1 / 10
Freemium · ~$0.14 · Free trial

Free (OSS self-hosted); cloud from ~$0.14/1M tokens

Dspy8.1 / 10
Free

Free (MIT open source)

Litellm8.1 / 10
Freemium · $250/mo · Free trial

Free OSS (MIT); Enterprise from $250/mo

Freemium · $50/mo · Free trial

Free (OSS / self-host); cloud from $50/mo

Promptfoo8.1 / 10
Free · Custom

Free (MIT); Enterprise custom

Qodo8.1 / 10
Freemium · $30/mo · Free trial

Free tier; paid plans from $30/user/month

Chroma8.0 / 10
Freemium · Free · Free trial

Free (OSS); Cloud free tier + usage

Cursor8.0 / 10
Freemium · $20/mo · Free trial

Free tier; Pro from $20/mo

Guidance8.0 / 10
Free

Free (open-source Python library)

llama.cpp8.0 / 10
Free

Free (MIT, open-source)

Milvus Cloud8.0 / 10
Freemium · Free

Free (5GB); serverless pay-as-you-go

Qdrant8.0 / 10
Freemium · ~$65/mo

Free tier; Cloud pay-as-you-go (~$65+/mo)

Unstructured8.0 / 10
Freemium · ~$0.03 · Free trial

Free (OSS + 15K pages); $0.03/page after

Freemium · ~$45/mo

Free sandbox; paid from ~$45/mo (Flex)

Zilliz Cloud8.0 / 10
Freemium · ~$70/mo · Free trial

Free tier; Dedicated from ~$70/mo

Apache Tika7.9 / 10
Free

Free (Apache 2.0, open-source)

Codeium7.9 / 10
Freemium · $20/mo · Free trial

Free; Pro from $20/mo

Continue7.9 / 10
Freemium · $20/mo · Free trial

Free (OSS); Hub teams from $20/seat/mo

Helicone7.9 / 10
Freemium · $79/mo · Free trial

Free (10K req/mo); Pro $79/mo

Milvus7.9 / 10
Free

Free (open-source); Zilliz Cloud from free tier

Windmill7.9 / 10
Freemium · $120/mo · Free trial

Free (OSS self-hosted); Enterprise from $120/mo

Zed7.9 / 10
Freemium · $10/mo · Free trial

Free tier; Pro from $10/mo

Convex7.8 / 10
Freemium · $25/mo · Free trial

Free tier; Pro from $25/dev/mo

Modal7.8 / 10
Freemium · $30/mo · Free trial

Free (Starter, $30/mo credits); Team $250/mo

trigger.dev7.8 / 10
Freemium · $10/mo

Free; Hobby $10/mo; Pro $50/mo

Trl7.8 / 10
Free

Free (Apache 2.0, open-source)

Ellipsis7.7 / 10
Freemium · Free · Free trial

Free for public repos; paid per developer

Kestra7.7 / 10
Freemium · Custom

Free OSS (Apache 2.0); Enterprise/Cloud paid (custom)

Langsmith7.7 / 10
Freemium · $39/mo · Free trial

Free tier; Plus from $39/seat/mo

Llamaparse7.7 / 10
Freemium · $50/mo

10K free credits/mo; Starter $50/mo

MindsDB7.7 / 10
Freemium · $9.95/mo · Free trial

Free tier; Pro from $9.95/mo

Prefect7.7 / 10
Freemium · $100/mo · Free trial

Free OSS + Cloud Hobby; Cloud Starter from $100/mo

Trulens7.7 / 10
Free

Free (open source); enterprise via Snowflake

Autify7.6 / 10
Freemium · $99/mo · Free trial

Free tier; paid plans from $99/month

Corti7.6 / 10
Freemium · Free · Free trial

Free credits; paid plans available

Momentic7.6 / 10
Freemium · Custom

Contact sales for enterprise plans

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