Conversion GemsConversion Gems

Developer tools

Databases, LLM infrastructure, coding agents, scraping APIs and a site crawler. Open source is common, so weigh the work of self-hosting against managed plans.

Scored by the Conversion Gems editorial team · reviewed June 2026 44 with a free plan · 54 with a free trial · median listed price $19/mo
57%of the 77 developer & technical tools we review offer a free plan.
Based on 77 tools in our database, reviewed June 2026.
77 tools
DetailsPricingFree planFree trialBest forReview
Neon8.5 / 10Freemium$19/moYesYesDevelopers building on Vercel, Cloudflare Workers, or AWS Lambda needing serverless-native PostgresReview Neon
Vllm8.5 / 10FreeFreeYes—ML engineers deploying open-weight models (Llama, Mistral, Qwen) at scaleReview Vllm
BerriAI8.3 / 10FreeCustomcontact salesYesYesML platform teams centralizing LLM keys and budgetsReview BerriAI
Screaming Frog8.3 / 10Freemium$279/yrYesYesTechnical SEO audits on sites of any sizeReview Screaming Frog
Jan AI (Local)8.1 / 10Free~$24 one-timeapproximateYes—Privacy-first users who want fully offline, auditable AIReview Jan AI (Local)
Arcade8.0 / 10Freemium$42.50/moYesYesSaaS marketing teams embedding interactive demos on product landing pagesReview Arcade
Cline8.0 / 10FreemiumFreeYes—Individual developersReview Cline
jan.ai8.0 / 10FreeFreeYes—Privacy-first AI use where data must never leave your deviceReview jan.ai
Qdrant Cloud8.0 / 10Freemium~$30/moapproximateYes—AI engineers building RAG applications and semantic search systemsReview Qdrant Cloud
IPHey7.9 / 10FreeFreeYes—Multi-account marketers validating antidetect browser profilesReview IPHey
Neon Serverless7.9 / 10Freemium~$0.11approximateYesYesServerless and edge function backends (Vercel, Cloudflare Workers, AWS Lambda)Review Neon Serverless
Riverside7.9 / 10Freemium$24/moYesYesPodcasters recording remote guest interviews who need studio-quality multi-track outputReview Riverside
bubble7.8 / 10Freemium$29/moYes—Non-technical founders validating SaaS or marketplace ideasReview bubble
Sitebulb7.8 / 10Paid$13.50/mo—YesSEO agencies producing visual, client-ready audit deliverablesReview Sitebulb
Turso7.8 / 10Freemium$4.99/moYes—SvelteKit, Remix, or Cloudflare Workers apps needing zero cold-start DBReview Turso
AWS7.7 / 10Usage-basedFree—YesScalable web applications, APIs, and microservicesReview AWS
heartflow7.7 / 10Custom~$1Kapproximate—YesHospitals and health systems running high-volume CCTA programsReview heartflow
Rokoko7.7 / 10Freemium$10/moYesYesIndie game studios needing affordable body and face captureReview Rokoko
Runpod7.7 / 10Usage-based~$0.34approximate—YesAI/ML engineers training and fine-tuning models on demandReview Runpod
Braintrust7.6 / 10Freemium$249/moYesYesAI engineers running CI/CD eval pipelines for LLM apps before each releaseReview Braintrust
Google Cloud7.6 / 10FreemiumUsage-basedpay as you goYesYesData engineering and analytics teams running BigQuery or Dataflow at scaleReview Google Cloud
Shippo7.6 / 10Freemium$19/moYesYesSMB e-commerce sellers wanting discounted multi-carrier rates without a monthly commitmentReview Shippo
AgentUniverse7.5 / 10FreeFreeYesYesPython developers building production multi-agent LLM pipelinesReview AgentUniverse
Apify Web Scraper7.5 / 10Freemium$5/moYesYesDevelopers scraping JavaScript-rendered and SPA-based sitesReview Apify Web Scraper
Bito7.5 / 10Freemium$15/moper seatYesYesEngineering teams needing AI-assisted code reviewsReview Bito
Cascadeur7.5 / 10Freemium$19/moYesYesIndie game studios animating humanoid characters on tight budgetsReview Cascadeur
CodeRabbit7.5 / 10Freemium$24/moper seatYesYesDevelopment teams using Git platformsReview CodeRabbit
Eraser7.5 / 10FreemiumFreeYesYesSoftware engineersReview Eraser
findchips7.5 / 10FreemiumFreeYes—Hardware engineers comparing part pricing and availabilityReview findchips
Galileo7.5 / 10Freemium$100/moYes—AI/ML teams productionizing LLM and agent appsReview Galileo
Microsoft Azure7.5 / 10FreemiumUsage-basedpay as you goYesYesEnterprise teams leveraging existing Microsoft 365, Windows Server, or SQL Server licensingReview Microsoft Azure
Playai7.5 / 10Freemium$39/moYesYesDevelopers building real-time AI voice agentsReview Playai
Tabnine7.5 / 10Paid$39/moper seat——Enterprise engineering teamsReview Tabnine
TeleportHQ7.5 / 10Paid$9/mo—YesAgencies needing fast, code-exportable landing page productionReview TeleportHQ
whisper.cpp7.4 / 10FreeFreeYes—Developers embedding offline speech-to-text in apps/devicesReview whisper.cpp
Anyscale7.3 / 10Usage-basedUsage-basedpay as you go—YesML/platform teams running large-scale Ray-based training or inferenceReview Anyscale
Hailo AI7.3 / 10Custom~$70approximate——Embedded and hardware engineers building edge AI products (cameras, robots, ADAS)Review Hailo AI
Nerfstudio7.3 / 10FreeFreeYes—Researchers developing or comparing NeRF methodsReview Nerfstudio
RunCloud7.2 / 10Paid$9/mo—YesDevelopers self-hosting PHP/WordPress on VPS without sysadmin skillsReview RunCloud
Automation Anywhere7.1 / 10Custom~$750/moper seat—YesLarge enterprises automating high-volume, rule-based back-office processesReview Automation Anywhere
Data Button7.1 / 10Paid$50/mo—YesNon-technical founders prototyping SaaS MVPsReview Data Button
Kaedim7.1 / 10Paid~$29/moapproximate——Game studios needing rapid, high-volume prop and environment asset creationReview Kaedim
smartbear software7.1 / 10Custom~$990/yrper seat—YesEnterprise teams needing API functional and load testingReview smartbear software
Honeyhive7.0 / 10FreemiumCustomcontact salesYesYesAI/ML engineers building multi-agent systems who need full distributed tracing and session replayReview Honeyhive
maplesim7.0 / 10Paid~$5.6K one-timeapproximate—YesAutomotive and aerospace engineers building digital twins and virtual prototypesReview maplesim
pandaextract7.0 / 10Freemium$9/moYesYesLead generation and contact harvesting from websitesReview pandaextract
ServerPilot7.0 / 10Paid$0.50/mo—YesWordPress and Laravel shops hosting multiple client sites on VPSReview ServerPilot
SolidWorks CAM7.0 / 10Freemium~$600/yrapproximateYesYesSOLIDWORKS users needing integrated 2.5-axis to 5-axis CNC programmingReview SolidWorks CAM
Keelvar6.9 / 10CustomCustomcontact sales—YesEnterprise procurement teams running complex multi-supplier, multi-variable sourcing eventsReview Keelvar
Kudosi6.9 / 10Freemium$14.95/moYesYesShopify dropshippers needing fast social proof via AliExpress/Amazon review importReview Kudosi
Neon8.5 / 10
Freemium · $19/mo · Free trial

Developers building on Vercel, Cloudflare Workers, or AWS Lambda needing serverless-native Postgres

Vllm8.5 / 10
Free

ML engineers deploying open-weight models (Llama, Mistral, Qwen) at scale

BerriAI8.3 / 10
Free · Custom · Free trial

ML platform teams centralizing LLM keys and budgets

Freemium · $279/yr · Free trial

Technical SEO audits on sites of any size

Free · ~$24 one-time

Privacy-first users who want fully offline, auditable AI

Arcade8.0 / 10
Freemium · $42.50/mo · Free trial

SaaS marketing teams embedding interactive demos on product landing pages

Cline8.0 / 10
Freemium · Free

Individual developers

jan.ai8.0 / 10
Free

Privacy-first AI use where data must never leave your device

Qdrant Cloud8.0 / 10
Freemium · ~$30/mo

AI engineers building RAG applications and semantic search systems

IPHey7.9 / 10
Free

Multi-account marketers validating antidetect browser profiles

Freemium · ~$0.11 · Free trial

Serverless and edge function backends (Vercel, Cloudflare Workers, AWS Lambda)

Riverside7.9 / 10
Freemium · $24/mo · Free trial

Podcasters recording remote guest interviews who need studio-quality multi-track output

bubble7.8 / 10
Freemium · $29/mo

Non-technical founders validating SaaS or marketplace ideas

Sitebulb7.8 / 10
Paid · $13.50/mo · Free trial

SEO agencies producing visual, client-ready audit deliverables

Turso7.8 / 10
Freemium · $4.99/mo

SvelteKit, Remix, or Cloudflare Workers apps needing zero cold-start DB

AWS7.7 / 10
Usage-based · Free · Free trial

Scalable web applications, APIs, and microservices

heartflow7.7 / 10
Custom · ~$1K · Free trial

Hospitals and health systems running high-volume CCTA programs

Rokoko7.7 / 10
Freemium · $10/mo · Free trial

Indie game studios needing affordable body and face capture

Runpod7.7 / 10
Usage-based · ~$0.34 · Free trial

AI/ML engineers training and fine-tuning models on demand

Braintrust7.6 / 10
Freemium · $249/mo · Free trial

AI engineers running CI/CD eval pipelines for LLM apps before each release

Google Cloud7.6 / 10
Freemium · Usage-based · Free trial

Data engineering and analytics teams running BigQuery or Dataflow at scale

Shippo7.6 / 10
Freemium · $19/mo · Free trial

SMB e-commerce sellers wanting discounted multi-carrier rates without a monthly commitment

Free · Free trial

Python developers building production multi-agent LLM pipelines

Freemium · $5/mo · Free trial

Developers scraping JavaScript-rendered and SPA-based sites

Bito7.5 / 10
Freemium · $15/mo · Free trial

Engineering teams needing AI-assisted code reviews

Cascadeur7.5 / 10
Freemium · $19/mo · Free trial

Indie game studios animating humanoid characters on tight budgets

CodeRabbit7.5 / 10
Freemium · $24/mo · Free trial

Development teams using Git platforms

Eraser7.5 / 10
Freemium · Free · Free trial

Software engineers

findchips7.5 / 10
Freemium · Free

Hardware engineers comparing part pricing and availability

Galileo7.5 / 10
Freemium · $100/mo

AI/ML teams productionizing LLM and agent apps

Freemium · Usage-based · Free trial

Enterprise teams leveraging existing Microsoft 365, Windows Server, or SQL Server licensing

Playai7.5 / 10
Freemium · $39/mo · Free trial

Developers building real-time AI voice agents

Tabnine7.5 / 10
Paid · $39/mo

Enterprise engineering teams

TeleportHQ7.5 / 10
Paid · $9/mo · Free trial

Agencies needing fast, code-exportable landing page production

whisper.cpp7.4 / 10
Free

Developers embedding offline speech-to-text in apps/devices

Anyscale7.3 / 10
Usage-based · Free trial

ML/platform teams running large-scale Ray-based training or inference

Hailo AI7.3 / 10
Custom · ~$70

Embedded and hardware engineers building edge AI products (cameras, robots, ADAS)

Nerfstudio7.3 / 10
Free

Researchers developing or comparing NeRF methods

RunCloud7.2 / 10
Paid · $9/mo · Free trial

Developers self-hosting PHP/WordPress on VPS without sysadmin skills

Custom · ~$750/mo · Free trial

Large enterprises automating high-volume, rule-based back-office processes

Data Button7.1 / 10
Paid · $50/mo · Free trial

Non-technical founders prototyping SaaS MVPs

Kaedim7.1 / 10
Paid · ~$29/mo

Game studios needing rapid, high-volume prop and environment asset creation

Custom · ~$990/yr · Free trial

Enterprise teams needing API functional and load testing

Honeyhive7.0 / 10
Freemium · Custom · Free trial

AI/ML engineers building multi-agent systems who need full distributed tracing and session replay

maplesim7.0 / 10
Paid · ~$5.6K one-time · Free trial

Automotive and aerospace engineers building digital twins and virtual prototypes

pandaextract7.0 / 10
Freemium · $9/mo · Free trial

Lead generation and contact harvesting from websites

ServerPilot7.0 / 10
Paid · $0.50/mo · Free trial

WordPress and Laravel shops hosting multiple client sites on VPS

Freemium · ~$600/yr · Free trial

SOLIDWORKS users needing integrated 2.5-axis to 5-axis CNC programming

Keelvar6.9 / 10
Custom · Free trial

Enterprise procurement teams running complex multi-supplier, multi-variable sourcing events

Kudosi6.9 / 10
Freemium · $14.95/mo · Free trial

Shopify dropshippers needing fast social proof via AliExpress/Amazon review import

Showing 50 of 77

About developer tools

This is a broad toolbox for people who build and run software: databases such as Neon and Turso, LLM infrastructure (Vllm for serving open-weight models, Berriai for managing LLM keys and budgets, jan.ai for running models locally), AI coding agents such as Cline, scraping APIs from Apify and ZenRows, and the Screaming Frog crawler. Open source is common, so 44 of the 77 tools have a free plan. Paid tiers mix usage billing, per-seat plans and enterprise quotes, with a median listed price of $19/mo.

What to compare before you choose

Self-hosted open source or managed service

Vllm, jan.ai and Berriai are free to download, but you run them: Vllm needs GPU hardware and DevOps capacity, and jan.ai needs a machine capable of local inference. Managed services such as Neon cost money but remove operations work. Price your team's time, not just the software.

Usage, seats or flat fees

Billing units vary widely: Neon's serverless Postgres has a free tier and usage-based plans from $19/mo, Screaming Frog charges $279/yr per license, and Arcade's Growth plan starts at $42.50/mo billed annually. Check what grows with you, whether queries, seats or requests, before committing.

Fit for non-developers

Many tools here are strictly developer infrastructure, as our review of Berriai states plainly, and Cline expects you to manage external AI model integrations. Arcade (interactive product demos) and Screaming Frog (technical SEO audits) are the exceptions marketers use, though Screaming Frog still suits technical marketers best.

Questions about developer & technical software