3,030 tools
Free trialTesting
Carbonate is an AI-driven end-to-end testing platform that records browser interactions in plain language, generates auto-healing tests, and runs them in a cloud runner or exported scripts for Python, Node, and PHP CI pipelines.
Free to startCode
Carbone generates PDF, DOCX, XLSX, PPTX, ODS, CSV, and other documents from JSON data plus office templates. It offers open-source embeddable engines, cloud and on-prem deployment options, template design tooling, and HTTP APIs for report automation in existing applications.
Free tier unknownAssistant
Carousel is an AI assistant for Microsoft Excel that builds spreadsheets and financial models in minutes instead of hours.
Free planAssistant
SuperPenguin, from Carrot Labs, is LLM cost management software that attributes AI spend by customer, feature, and team while unifying bills from OpenAI, Anthropic, Gemini, Cursor, and other providers. It adds Coding ROI views for agent spend per merged pull request and a Mac menu-bar app for live agent usage.
Free planCode
Carve is a markup language for structured documents with defined syntax for headings, tables, references, math, and optional extensions.
Free tier unknownSpace
Cascade Space is building a commercial deep-space communications network using scalable antenna arrays. It offers Array Designer planning tools and Array operations software for missions that need reliable links beyond low Earth orbit.
Free tier unknownAssistant
Casco provides continuous AI penetration testing for web apps, APIs, cloud infrastructure, mobile apps, and AI systems. The platform discovers assets, runs authenticated tests, proves exploitable attack paths, prioritizes findings, and automatically retests fixes through supervised or autonomous pentest modes.
Free planCode
Apache Cassandra is an open-source distributed NoSQL database built to manage massive datasets with high availability and linear scalability. It targets always-on workloads across commodity hardware with tunable consistency, CQL access, and a large ecosystem of integrations.
Free planSecurity
Castle provides SDKs and APIs to detect bots, monitor risky logins, and stop account abuse using device, email, IP, and behavioral intelligence. Teams integrate Castle to score traffic and automate policy actions in web and mobile apps.
Free tier unknownCode
CatalyzeX is associated with catalyzex.com, a domain that responded with a Cloudflare interstitial requiring JavaScript during this check. Public pricing and feature pages could not be retrieved via simple HTTP fetch, so product specifics are not confirmed here.
Free trialPush notifications
Catapush delivers reliable mobile push notifications with delivery tracking, optional end-to-end encryption, and enterprise white-label messaging. Accounts start with a sandbox free tier measured in monthly unique active recipients before enterprise quotes.
Free planDomain research
CatchDoms aggregates expired and aged domains from 22 auction and marketplace sources with SEO metrics, Wayback history, filters, CSV export, and optional API and MCP access for domain investors and agencies hunting dropped inventory.
Free trialObservability
CatchJS monitors client-side JavaScript errors and real-user performance metrics such as Core Web Vitals, capturing stack traces, optional screenshots, click trails, and source maps so teams learn about breakages before users report them.
Free planCode
CatDoes is an autonomous AI agent that builds mobile apps, websites, and related software from natural-language descriptions. It plans work, writes code, runs tests, exposes a multi-device canvas preview, supports GitHub import, and offers paid tiers with credits for deploys to web or app stores.
Free tier unknownCode
CatLight is a desktop action center for developers that aggregates CI builds, release pipelines, pull requests, and issue trackers into tray notifications and a prioritized task list. It integrates with systems such as GitHub, GitLab, Jenkins, Azure DevOps, Jira, and TeamCity.
Free tier unknownSecurity
Caution is a verifiable confidential compute platform that deploys workloads to trusted execution environments with cryptographic proof that production matches reviewed source, kernel, and toolchain layers.
Free planDeveloper CDN
cdnjs is a free, community-driven public CDN backed by Cloudflare for popular JavaScript, CSS, and font libraries. Maintainers add packages via GitHub pull requests and receive versioned assets with SRI hashes served over HTTPS from Cloudflare’s edge.
Free planCode
It auto-generates pagination, sitemaps, taxonomies, RSS, image derivatives, and multilingual sites without requiring a database at runtime.
Free tier unknownCode
Celvox describes itself as working to decode the language of cells, positioning its research at the intersection of biology and AI. The public site is a minimal landing page with mission-focused messaging and no productized software workflow published yet.
Free trialCode
Centreon is an observability platform for IT infrastructure monitoring, log management, and digital experience monitoring. It offers alerting, dashboards, SLA views, SaaS or self-hosted deployment, hundreds of connectors, and modules for synthetic and real-user web performance testing.
Free planDeveloper tools
Centrifugo is an open-source real-time messaging server that delivers pub/sub events over WebSocket, SSE, HTTP streaming, WebTransport, and gRPC. Teams integrate it with any backend to power chats, live comments, multiplayer sync, and AI streaming with horizontal scaling via Redis, PostgreSQL, or NATS.
Free planAuthorization
Cerbos Hub is Cerbos’s control plane for writing, testing, and deploying authorization policies to PDPs across apps, APIs, and AI workloads. It adds playgrounds, CI validation, policy delivery from Git or Hub, and managed audit logging on top of the open-source Cerbos engine.
Free planCode
Cerebrium is a serverless GPU platform for deploying real-time AI workloads such as voice agents, video models, and LLMs with sub-second cold starts and elastic scaling. Teams run Python apps on managed GPUs across multiple regions and pay for compute by the second rather than reserved capacity.
Free trialCertificate monitoring
CertObserver monitors TLS certificates across inventories, Certificate Transparency logs, and live endpoints with expiry alerts, team roles, and a free CT search tool. Plans bundle inventory limits, CT monitors, endpoint checks, and Slack or email notifications.
Showing 528 of 3,030 tools
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