All Developer Tools

Respell — visual AI workflow builder. Drag-and-drop LLM chains with 100+ integrations for non-technical teams to ship AI automations.

Respond.io — Omnichannel messaging CRM for managing customer conversations across WhatsApp, Messenger, and more.

Respondology — brand and creator comment moderation across Instagram, YouTube, TikTok, Facebook.

REST-assured — Test Automation / Device Cloud tool for developers. Specializes in API Testing.

Restack — framework for building, deploying, and scaling AI agents. Durable workflows, observability, and event-driven orchestration in TypeScript.

Restate — No-code / Low-code App Builders tool for developers. Specializes in Durable Functions.

Restream — multistream, studio, and live streaming platform for creators

ResultantAI — AI consulting and platform services company providing enterprise AI strategy and implementation.

Resvg — CI/CD for Applications tool for developers. Specializes in SVG Rendering.

Retell AI — AI API / SDK for Developers tool for developers. Specializes in Voice AI Platform.

AI-powered messaging platform for mobile app retention, churn prevention and subscription winback across push, email, in-app and SMS.

Reth — CI/CD for Applications tool for developers. Specializes in Ethereum Client.

Microsofts open-source eBPF-based network observability platform for Kubernetes with traffic flow visualization.

Retool — No-code / Low-code App Builders tool for developers. Specializes in internal tools.

Rev AI — AI API / SDK for Developers tool for developers. Specializes in Speech to Text.

Image generation model with strong prompt adherence, accurate text rendering and multi-reference input.

RevenueCat — Subscription infrastructure SDK for iOS, Android, and web handling purchase events, entitlements, and revenue analytics.

Offerwall platform delivering rewarded offers and CPA campaigns for app publishers worldwide.

Reversing Labs — Security Scanning / Mobile App Sec tool for developers. Specializes in Supply Chain Security/Malware.

Revert — Data Integration / ETL / Reverse ETL tool for developers. Specializes in integrations.

ReviewBoard — Real-time / WebSocket Infrastructure tool for developers. Specializes in Code Review.

Reviewdog — CI/CD for Applications tool for developers. Specializes in Code Quality.

Reviewpad — CI/CD for Applications tool for developers. Specializes in Code Review Automation.

Offerwall monetization platform for games and apps with worldwide surveys, tasks, and CPI offers.

Revolut Business API + Merchant API + OpenBanking endpoints for payouts/checkout.

Chinese mobile attribution and game analytics platform with TrackingIO ad monitoring and GameAnalysis products.

Rezilion — Security Scanning / Mobile App Sec tool for developers. Specializes in Software Supply Chain Security.

RGW Ceph — CI/CD for Applications tool for developers. Specializes in Object Storage.

RhodeCode — Self-hosted code repository management platform supporting Git, Mercurial, and SVN with code review tools.

Rich — CI/CD for Applications tool for developers. Specializes in Terminal Formatting.

rich-click — Click extension rendering help text with Rich formatting for styled terminal CLI output.

Rill Data — OSS BI tool providing instant pre-aggregated dashboards powered by DuckDB with sub-second query performance.

Rillet — AI-native accounting platform with REST API for invoices, payments, credit memos and journal entries

Enterprise-grade AI text-to-speech with linguistically-designed models optimized for contact centers and voice agents.

Microsoft-spinoff Tokyo AI lab behind famed Rinna chatbot — conversational, voice and LLM APIs for Japanese.

ripgrep — CI/CD for Applications tool for developers. Specializes in Fast Search.

RisingWave — DBaaS / Serverless Databases tool for developers. Specializes in Streaming Database.

RiskBased Security — Security Scanning / Mobile App Sec tool for developers. Specializes in Vulnerability Intelligence.

Riskified — Chargeback guarantee fraud platform using ML to approve more orders and take financial liability for fraud losses.

Riskonnect — Security Scanning / Mobile App Sec tool for developers. Specializes in GRC.

RiskRecon — Security Scanning / Mobile App Sec tool for developers. Specializes in Third Party Risk.

Rive — Interactive animation tool with a runtime for embedding state-machine-driven animations in apps and games.

Riverside FM AI — AI API / SDK for Developers tool for developers. Specializes in Audio/Video AI.

Rivery — Fully managed ELT platform with 200+ connectors, reverse ETL, and data orchestration for warehouse pipelines.

Rivet — Open-source game server hosting platform with matchmaking, lobbies, and autoscaling on managed infrastructure.

Roadie — Developer Portals / API Management tool for developers. Specializes in Managed Backstage.

Roadmap.sh — community-driven platform providing visual developer learning roadmaps for frontend, backend, DevOps, and 20+ other tech paths.

Legal AI platform combining contract review software with human-in-the-loop managed services for financial services.

Robocorp — open-source Python-based RPA platform. Offers cloud orchestration, browser automation, and developer-first robot framework.

Roboflow — AI API / SDK for Developers tool for developers. Specializes in Computer Vision.

Robot Framework — CI/CD for Applications tool for developers. Specializes in Test Automation.

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

Robusta — CI/CD for Applications tool for developers. Specializes in Kubernetes Alerts.

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

Rockerbox — Marketing attribution platform that centralizes ad spend data for multi-touch attribution reporting.

Rocket.Chat — Customer Support SDK / In-app Helpdesk tool for developers. Specializes in team chat.

Rocket.new — AI-powered web app builder that generates full-stack projects from natural language specifications.

Motion-capture tooling with Smartsuit Pro hardware, AI video capture and Rokoko Studio for exporting to Unity, Unreal and Blender.

Rollbar — Real-time error monitoring and debugging platform supporting 30+ languages with deploy tracking and workflow integrations.

Rolldown — CI/CD for Applications tool for developers. Specializes in Build Tools & Bundlers.

Rollup — CI/CD for Applications tool for developers. Specializes in Module Bundler.

Rome — CI/CD for Applications tool for developers. Specializes in Code Formatting & Linting.

Chinese IM and RTC PaaS (融云) with SDKs for chat, voice, video and live streaming used by 400k+ apps.

Rook — CDN / Edge / Acceleration tool for developers. Specializes in Storage Orchestration.

Rookout — Performance Monitoring / APM tool for developers. Specializes in Live Debugging.

Rootly — Observability / Logging / Tracing tool for developers. Specializes in Incident Management.

Rosebud AI — AI API / SDK for Developers tool for developers. Specializes in creative ai.

Rossum — AI-first intelligent document processing for invoices, POs, and receipts. Auto-extracts data with no templates, integrates into ERP workflows.

Routable — Payment Gateway / PSP tool for developers. Specializes in payouts.

Global payments API for fintechs with cross-border transfers, FX, and multi-rail stablecoin support.

RouteLLM — AI API / SDK for Developers tool for developers. Specializes in LLM Routing.

Rows — CI/CD for Applications tool for developers. Specializes in Low Code Platform.

AI revenue automation platform that generates pipeline, qualifies leads, books meetings and manages deals autonomously.

RQ (Redis Queue) — CI/CD for Applications tool for developers. Specializes in Job Queue.

rqlite — CI/CD for Applications tool for developers. Specializes in Database.

Open-source web session replay library. Pixel-perfect recording and playback APIs used by major platforms (PostHog, OpenReplay and many tools).

Behaviour-driven-development testing framework for Ruby, the most widely used alternative to Minitest with describe/it/expect syntax.

Deep-learning retargeting DSP for e-commerce and app advertisers with personalized programmatic campaigns.

RuboCop — CI/CD for Applications tool for developers. Specializes in Code Quality.

Rubrik — CI/CD for Applications tool for developers. Specializes in Data Security & Backup.

Rubrix — AI API / SDK for Developers tool for developers. Specializes in Data Annotation.

RudderStack — Open-source customer data platform collecting events and routing to warehouses and downstream tools with consent controls.

Ruff — Security Scanning / Mobile App Sec tool for developers. Specializes in Python Linter.

Rundeck — CI/CD for Applications tool for developers. Specializes in Runbooks.

Runecast — Security Scanning / Mobile App Sec tool for developers. Specializes in Cloud Security Posture.

Runframe — Observability / Logging / Tracing tool for developers. Specializes in On Call Platform.

Runloop — Cloud sandbox infrastructure for AI coding agents providing isolated development environments via API.

Runpod — CI/CD for Applications tool for developers. Specializes in GPU Cloud / Serverless AI.

RunReveal — Security data lake and detection platform ingesting cloud logs for cost-efficient SIEM at scale.

Self-hosted GitHub Actions runners deployed in your AWS account supporting x64, ARM64, and GPU instances at 90% lower cost.

Runtime — Code Assistants / Agent Tooling tool for developers. Specializes in Agent Control.

Runtime (runtm) — AI-powered test generation and execution platform for automating software quality workflows.

Runware — AI API / SDK for Developers tool for developers. Specializes in Image Generation API.

Runway — Mobile release management platform automating iOS and Android app store submission metadata and screenshots.

Runway ML — AI creative tools platform offering image, video, and audio generation models via REST API.

Runway Mobile — Release / App Store Operations tool for developers. Specializes in Release Management.

Digital assistant platform for SREs that automatically runs troubleshooting tasks and playbooks across Kubernetes and cloud.

Rush — CI/CD for Applications tool for developers. Specializes in Monorepo Manager.

RustDesk — CI/CD for Applications tool for developers. Specializes in Remote Desktop.

Universal API for commerce, accounting, and payments platform integrations.

RxDB — CI/CD for Applications tool for developers. Specializes in Local first Database.

Rybbit — CI/CD for Applications tool for developers. Specializes in Web Analytics.

s2.dev — Real-time / WebSocket Infrastructure tool for developers. Specializes in Durable Streams API.

Saas UI — No-code / Low-code App Builders tool for developers. Specializes in UI Component Library.

SADA — CI/CD for Applications tool for developers. Specializes in Cloud Cost.

SafeBase — Security Scanning / Mobile App Sec tool for developers. Specializes in Trust Center/Security Reviews.

Self-custody MPC wallet platform using 3-of-3 key-shard architecture with open-source protocol libraries and developer APIs.

SafeLine — Security Scanning / Mobile App Sec tool for developers. Specializes in WAF.

SafeTensors — AI API / SDK for Developers tool for developers. Specializes in ML Model Format.

Australian mobile-first operations and safety inspection platform with public API for workflow automation.

Safurai — Code Assistants / Agent Tooling tool for developers. Specializes in ai coding.

Subscription billing and revenue recognition module within Sage Intacct ERP for mid-market SaaS companies.

SailPoint — Security Scanning / Mobile App Sec tool for developers. Specializes in IGA.

Sakana AI — Tokyo-based AI research lab exploring nature-inspired AI and innovative architectures for efficient models.

Sakura Internets IaaS — Japan-native VM, object storage, archive and GPU servers with Terraform provider.

Sakura Internet — Japanese cloud infrastructure provider offering VPS, object storage, and managed services.

Sakura Internets low-cost Japanese VPS — favored by individual developers, Minecraft and hobby projects.

Salad Cloud — AI API / SDK for Developers tool for developers. Specializes in GPU Cloud.

Saleor — Payment Gateway / PSP tool for developers. Specializes in commerce api.

B2B SaaS quote-to-revenue platform with modular Bricks pricing, interactive quotes, and recurring billing.