2,445 tools
Free tier unknownCoding & development
Nova (TryNova.ai) is an AI QA agent that generates, executes, and maintains end-to-end tests based on real user behavior, integrating with CI/CD for pull-request feedback. It targets faster coverage of critical journeys like checkout and signup while reducing brittle test maintenance.
Free planCoding & development
Noveum.ai is a closed-loop AI agent evaluation platform with calibrated scorers for chat, voice, and workflow agents on production traces. It bundles NovaSynth testing, NovaPilot trace analysis, org-flat credit billing, and optional validated fixes shipped as pull requests.
Free planCoding & development
Novu is open-source notification infrastructure for connecting AI agents and products to customers across in-app, email, SMS, push, WhatsApp, Slack, Teams, and Telegram channels. Cloud plans meter workflow runs while enterprise options add compliance, residency, and self-hosted deployment.
Free planCoding & development
NSQ is a realtime distributed messaging platform implemented in Go that provides fault-tolerant queues without a single global broker dependency. The project site documents topology, client libraries, and operational patterns for decoupling microservices with at-least-once delivery semantics.
Free planCoding & development
NSubstitute is an open-source .NET mocking library focused on Arrange-Act-Assert tests with readable syntax for stubs, spies, and substitutes. The official docs explain how to configure return values and assert received calls without heavy lambda noise compared with older mocking frameworks.
Free planCoding & development
ntfy is a simple HTTP pub-sub notification service for sending push alerts to phones and desktops via REST, CLI, or mobile apps, with fully open source self-hosting. The hosted ntfy.sh service also offers paid ntfy Pro plans for reserved topics and extended limits.
No free planSecurity & privacy
ntopng is ntop’s network traffic analysis software for visibility, performance monitoring, threat detection, and flow analytics. Community builds are available while commercial Pro and Enterprise licenses unlock higher-scale features through the ntop shop.
Free planCoding & development
numverify provides a JSON REST API to validate and look up phone numbers across 232 countries, returning carrier, line type, and formatting details. Subscription plans scale monthly API request quotas from a free non-commercial tier through commercial Basic and Professional bundles.
Free planCoding & development
NxCode is an AI app builder that turns natural-language product descriptions into deployable applications using Conductor and Virtuoso agents with Docker-based code execution. The site targets founders and builders who want production-oriented generation, debugging passes, and edge deployment without manual coding.
Free planCoding & development
Nylas provides APIs and agent accounts to integrate email, calendar, and meeting data from hundreds of providers including Gmail, Microsoft, IMAP, and Zoom. The homepage positions Nylas as a communication data layer for both human workflows and AI agents that need provider-normalized messaging and scheduling under one platform.
Free planCoding & development
Objenesis is a small open-source Java library that instantiates objects without calling their constructors, useful for serialization frameworks, proxies, and dependency injection containers when default constructors are unavailable.
Free planCoding & development
ODB is an open-source C++ object-relational mapping system from Code Synthesis that persists C++ objects to relational databases without manual SQL table mapping. It ships with compiler tooling, runtime libraries, and documentation for multiple database backends.
Free planCoding & development
Oga is an archived Ruby XML/HTML parser project that previously lived on GitLab and now resides on GitHub. The repository provides a Ruby-native parsing alternative with MIT-licensed source code but is read-only after archival.
Free planCoding & development
oj! Algorithms (ojAlgo) is an open-source Java library for mathematics, linear algebra, optimization, finance utilities, and data-science helpers with zero runtime dependencies beyond the JDK.
Free planCoding & development
Okibi generates production CLIs from your product so AI agents can use it reliably. It researches existing SDKs and competitor CLIs, designs commands, verifies them in sandboxes, ships binaries with SKILL.md files, and includes Okibi Identity for agent account setup.
Free tier unknownResearch & search
Olive helps teams build internal BI tools and dashboards with AI prompts connected to databases and third-party systems. It generates customer health views, churn risk analyses, and other operational dashboards with enterprise-oriented data understanding and security positioning.
Free planCoding & development
OliveTin exposes predefined shell commands as safe web buttons so operators can share vetted automations with less technical users or agents. Actions are declared in YAML, refresh into the UI, and run under AGPL-licensed self-hosted control.
Free planCoding & development
Omnigent is an open-source meta-harness for composing and governing AI coding agents across Claude Code, Codex, Pi, and custom harnesses. It adds contextual policies, OS sandboxing, shared live sessions, and built-in multi-agent personas such as Polly and Debby.
Free tier unknownCoding & development
Ona runs cloud-hosted software engineering agents and development environments with orchestration, governance, and kernel-level security. The homepage promises a mission control for AI engineers that works across devices with sandboxed VS Code environments and pooled compute credits for agent conversations.
AI agents & automation
OneClickClaw provides managed hosting and deployment for OpenClaw and Hermes AI agents.
Free planCoding & development
OneCompiler is an online IDE and compiler platform for writing, running, and sharing code in 110+ languages and databases. It adds AI-assisted building blocks, studio time, and team-oriented paid tiers on top of a free compiler that supports unlimited code executions with daily AI credit limits.
Free planCoding & development
OneDev is a self-hosted dev platform combining Git hosting, issues, pull requests, CI/CD, packages, wiki, and workspaces with AI-assisted workflows. It targets teams that want an integrated toolchain without stitching separate SaaS products.
Free tier unknownCoding & development
OnePatch instruments production stacks, verifies pull requests against live telemetry, and helps on-call teams catch regressions faster. It targets engineering organizations shipping many PRs daily who need monitors, dashboards, and incident threads tied to recent changes.
Coding & development
One Person Company self-hosts business operations tools and a team of AI specialist agents.
Showing 1,752 of 2,445 tools
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