All Developer Tools

HelpStack — Open-source in-app customer support SDK for iOS and Android integrating with helpdesk platforms like Zendesk and Desk.

HEML — CI/CD for Applications tool for developers. Specializes in Email Markup.

HERE Maps — Maps / Geolocation / Routing tool for developers. Specializes in mapping api.

HERE Maps JS — CI/CD for Applications tool for developers. Specializes in Maps & Geolocation SDK.

HERE Technologies — Mapping and location data platform with automotive-grade maps, routing, and positioning APIs.

Hermetic tool management system for monorepos that installs per-project development tools without polluting the system PATH. Ensures all developers and CI use identical toolchain versions.

Heroic Labs — Company behind Nakama, an open-source game backend for social, multiplayer, and live-ops features.

Heroku — Backend-as-a-Service tool for developers. Specializes in deployment.

Heron Data offers APIs for SMB classification, underwriting and KYB enrichment, using machine learning to categorize businesses, detect risk and accelerate onboarding for lenders and fintechs.

HetrixTools — Observability / Logging / Tracing tool for developers. Specializes in Uptime Monitoring.

Hetzner Cloud — CI/CD for Applications tool for developers. Specializes in Cloud Provider.

Hevo Data — No-code ELT pipeline platform with 150+ sources, real-time data loading, and automated schema mapping.

Hex Magic — AI API / SDK for Developers tool for developers. Specializes in AI Data Analysis.

Hex Technologies — CI/CD for Applications tool for developers. Specializes in Data Notebook.

HeyBoss — AI-powered no-code website and app builder that generates full projects from conversational descriptions.

Heybounce — Messaging API (Email / SMS / Voice) tool for developers. Specializes in email verification.

HeyGen — AI API / SDK for Developers tool for developers. Specializes in AI Video Generation.

Hibernate — CI/CD for Applications tool for developers. Specializes in Java ORM.

HiddenLayer — AI API / SDK for Developers tool for developers. Specializes in AI Security.

AI video and image generation infrastructure with 15+ models (FLUX, Seedance, Kling, Sora 2, Soul) in one workspace.

Higher Logic — Online community and marketing automation platform for associations and member organizations.

Highlight — Session Replay / UX Analytics tool for developers. Specializes in open source replay.

Highlight.io — Observability / Logging / Tracing tool for developers. Specializes in Full-Stack Monitoring.

Modern card issuing and acquiring platform with processor, program manager, and GraphQL API.

HighRadius — AI-powered accounts receivable automation, credit management and cash application for enterprises

Hightouch — Reverse ETL platform syncing data from warehouses to CRM, marketing, and support tools with RBAC controls.

Higress — Developer Portals / API Management tool for developers. Specializes in API Gateway.

HilltopAds — Self-serve ad network for web publishers with pop-under, display, and in-page push ad formats.

Singapore-based all-in-one payment gateway for SEA SMBs — cards, PayNow, wallets, POS, invoicing.

Hive Guard is a set of APIs from Hive targeting fraud and abuse, including AI-generated image and text detection, deepfake detection and document tampering. It is used by marketplaces, dating apps and fintechs alongside its content-moderati

Hive Moderation — AI content moderation API classifying text and images for hate, nudity, spam, and violence.

Hivebrite — Enterprise online community platform for alumni networks, professional associations, and memberships.

HiveMQ — Enterprise MQTT broker for IoT deployments with clustering, persistence, and Kafka integration.

Hiver — Gmail-based shared inbox and customer support tool for teams managing help and support emails.

HMPL — CI/CD for Applications tool for developers. Specializes in Template Language.

Mobile deep linking platform with smart links, deferred deep links and attribution dashboard for app marketers.

Vacation-rental metasearch with affiliate/partner inventory feed API.

Holistics — CI/CD for Applications tool for developers. Specializes in Analytics Platform.

Holm Security — Security Scanning / Mobile App Sec tool for developers. Specializes in Vulnerability Management.

Holori — CI/CD for Applications tool for developers. Specializes in FinOps & Cost Management.

In-vehicle XR platform (Audi spinoff); SDK for location-synced immersive content.

Homebrew — CI/CD for Applications tool for developers. Specializes in Package Manager.

Extension of Homebrew that installs macOS GUI applications, fonts, plugins, and other non-open-source software.

Honeybadger — Error, uptime, and check-in monitoring platform for Ruby, Python, JavaScript, and other runtimes.

Honeycomb — Observability platform for high-cardinality event data with fast arbitrary-field queries and BubbleUp analysis.

HoneyHive — AI API / SDK for Developers tool for developers. Specializes in LLM Evaluation.

Hono — CI/CD for Applications tool for developers. Specializes in Web Framework.

Hook0 — CI/CD for Applications tool for developers. Specializes in Webhooks Service.

Hookbin — Free webhook testing and inspection service for capturing and debugging incoming HTTP webhook payloads.

Hookdeck — CI/CD for Applications tool for developers. Specializes in Event Streaming.

HooYu combines ID document verification, face-match biometrics, database checks and digital footprint analysis into a customer onboarding journey used by banks, gaming operators and fintechs.

Hoppscotch — OSS lightweight API development tool supporting REST, GraphQL, WebSocket, SSE, and MQTT in a web UI.

Hopsworks — CI/CD for Applications tool for developers. Specializes in Feature Store.

Horizon UI — No-code / Low-code App Builders tool for developers. Specializes in ui framework.

Hostinger Horizons — AI-powered no-code website and web app builder from Hostinger with one-click publishing.

Hostman — CI/CD for Applications tool for developers. Specializes in Static Hosting.

HotGlue — CI/CD for Applications tool for developers. Specializes in Integration Platform.

Hotjar — UX analytics platform combining heatmaps, session recordings, surveys, and funnel analysis for web products.

Procedural 3D creation tool by SideFX used for VFX and game asset generation. Houdini Engine lets artists drive procedural pipelines inside Unity, Unreal, and Maya.

Hour One AI — AI API / SDK for Developers tool for developers. Specializes in AI Video Generation.

All-in-one website analytics with dynamic heatmaps, session replay, conversion/form funnels, feedback widgets and 100+ integrations.

Japanese performance and talent management SaaS with evaluation workflows and integration APIs for kintone/Slack.

Visionals all-in-one Japanese HR suite (ATS, core HR, evaluation) with REST APIs for recruiting automation.

HTML2PDF.app — REST API converting HTML or URL to PDF with header/footer templates and custom CSS support.

html2pdf.js — CI/CD for Applications tool for developers. Specializes in PDF Generation.

htmlparser2 — CI/CD for Applications tool for developers. Specializes in HTML Parsing.

HTMLpub — CI/CD for Applications tool for developers. Specializes in Static Hosting.

HTTP Toolkit — CI/CD for Applications tool for developers. Specializes in HTTP Debugging.

HTTPie — Developer Portals / API Management tool for developers. Specializes in http client.

HTTPX — CI/CD for Applications tool for developers. Specializes in HTTP Client.

Huawei Cloud — CI/CD for Applications tool for developers. Specializes in Cloud Provider.

Huawei Mobile Services push notification service for Android/HarmonyOS with batch and topic-based targeting.

Hubble (Cilium) — CI/CD for Applications tool for developers. Specializes in Network Observability.

HubSpot — CRM platform with marketing, sales, service, and CMS hubs with an extensive REST API.

HubSpot Meetings API — REST API for embedding and automating HubSpot scheduling links within CRM and app workflows.

Hud — Performance Monitoring / APM tool for developers. Specializes in application monitoring.

Huey — CI/CD for Applications tool for developers. Specializes in Task Queue.

Hugging Face — AI model hub and API platform hosting 100,000+ models with Inference API and Spaces for deployment.

Hugging Face Spaces — AI API / SDK for Developers tool for developers. Specializes in ML Deployment.

Hugging Face Transformers — AI API / SDK for Developers tool for developers. Specializes in NLP.

Hugo — CI/CD for Applications tool for developers. Specializes in Static Site Generator.

Huly — OSS all-in-one project management platform combining issues, docs, HR, and team communication tools.

Free mix-and-match illustration library of human characters with customizable clothing, hair, poses, and skin tones. Distributed for use in products, marketing, and presentations.

Cybersecurity and ad fraud defense platform protecting digital advertising across 20T weekly interactions on web, app and CTV.

Humanitec — CI/CD for Applications tool for developers. Specializes in Internal Developer Platform.

Humanize — CI/CD for Applications tool for developers. Specializes in Utilities.

Humanloop — AI API / SDK for Developers tool for developers. Specializes in Prompt Management.

Empathic voice AI lab providing speech-to-speech models (EVI, Octave) that understand and generate emotion.

Humio (CrowdStrike) — High-throughput log management and observability platform with compressed streaming ingestion and live query.

Hummingbird — AML and compliance case management platform automating SAR filing, KYC reviews, and investigation workflows.

Hunter.io — Messaging API (Email / SMS / Voice) tool for developers. Specializes in email tools.

Husky — CI/CD for Applications tool for developers. Specializes in Git Hooks.

Hydra — DBaaS / Serverless Databases tool for developers. Specializes in Postgres for Analytics.

Hygraph — Developer Portals / API Management tool for developers. Specializes in GraphQL CMS.

Hypefury — CI/CD for Applications tool for developers. Specializes in Social Media Growth.

Hyperbolic — Decentralized GPU cloud providing on-demand compute for AI model training and inference workloads.

Cloud browser infrastructure for AI agents with session management, captcha solving and stealth mode.

Seoul-based global video and live-streaming APIs/SDKs — WebRTC chat, video and messaging for apps.

Hypercorn — CI/CD for Applications tool for developers. Specializes in ASGI Server.

HyperDX — Observability / Logging / Tracing tool for developers. Specializes in open source observability.

HyperDX (OSS) — CI/CD for Applications tool for developers. Specializes in Observability.

Hyperfoil — Distributed HTTP load testing framework using async execution for accurate microservice throughput benchmarking.

Hyperline — Subscription billing platform for B2B SaaS with custom pricing, quote-to-cash, and ERP/CRM integrations.

Hyperon — feature flag and configuration management platform with secrets support for cloud apps.

Hyperopt — AI API / SDK for Developers tool for developers. Specializes in Hyperparameter Optimization.

HyperPay — MENA payment gateway supporting Visa, Mastercard, mada, AMEX, and SADAD across Saudi Arabia, UAE, and the region.

Hyperping — Observability / Logging / Tracing tool for developers. Specializes in Uptime Monitoring.

Hyperproof — Compliance operations platform for SOC 2, ISO 27001, FedRAMP, and CMMC with automated evidence collection.

GPU cloud platform with instant H100/A100 access for AI and ML training, fine-tuning and inference workloads.

Open-source payments switch written in Rust that connects to multiple processors via a single unified API.

Hypertune — Feature Flags / Remote Config tool for developers. Specializes in Type-Safe Feature Flags.

HyperVerge — AI-powered identity verification platform with 95%+ accuracy for document OCR, face match, and liveness checks.

Hypothesis — CI/CD for Applications tool for developers. Specializes in Property Testing.

HYPR — Passwordless authentication platform using FIDO2/WebAuthn for phishing-resistant employee and customer MFA.

Dynamic tiling Wayland compositor for Linux — smooth animations, extensive customization, plugin ecosystem.

Mobile ad network bringing direct-sold brand video and rewarded ads to app publishers, subsidiary of Jun Group.

Hystax — Cloud cost management and FinOps platform with automated optimization for AWS, Azure, and GCP.

i18next — CI/CD for Applications tool for developers. Specializes in Internationalization.

i2c — Global card issuing and payment processing platform supporting debit, credit, and prepaid programs for fintechs and banks.

IAPHUB — In-app Purchase Optimization tool for developers. Specializes in In-App Purchase.