Free tier

IPGeolocation.io

IPGeolocation.io provides an IP geolocation API and downloadable IP intelligence databases for IPv4 and IPv6 lookups. The unified API returns location, country metadata, currency, ASN, and time zone d...

IPinfo

IPinfo is an IP data platform that provides IP geolocation, ASN, privacy detection, mobile carrier, company, hosted domains, abuse contact, IP ranges, and WHOIS data through APIs and downloadable data...

IPLocate.io

IPLocate.io provides an IP address intelligence API and downloadable databases for geolocation, threat and privacy detection, hosting provider detection, company lookup, and ASN/network data. The API ...

IPWho

IPWho is an IP geolocation API that returns location, timezone, currency, connection, user-agent, security, and flag data from a single endpoint. The API also supports bulk lookups for comma-separated...

isroot.in

isroot.in provides free subdomains under .isroot.in with DNS management for developers. Users can check availability and configure A, CNAME, and MX records through a simple interface, with live status updates for DNS changes.

iubenda is a compliance platform for websites, apps, and organizations. It generates and hosts privacy and cookie policies, cookie consent banners, terms and conditions, and accessibility tools, with ...

Jam

Jam is a screen recording and bug capture tool for software teams. It records browser activity, screenshots, screen video, and available technical context such as logs, network requests, user events, and device details, then packages that information into a shareable Jam for teammates or agents.

JetBrains Datalore

JetBrains Datalore is a collaborative data science platform for working with Jupyter notebooks in the cloud or on-premises. It supports Python notebooks and also lists SQL, R, Scala, and Kotlin notebook support, along with notebook export, an API, and on-the-fly environment customization.

Jira is Atlassian's cloud project management and issue tracking product. It supports project and task tracking with backlog, list, board, timeline, calendar, and summary views, plus dashboards, reports, forms, customizable workflows, templates, and integrations.

JitPack

JitPack is a package repository for Git-based JVM and Android libraries. It builds artifacts directly from Git repositories and serves them through Maven-compatible coordinates for Gradle, Maven, SBT, and Leiningen builds.

Jotform

Jotform is an online form builder that helps businesses create professional forms without coding. It supports drag-and-drop form creation, customizable branding, conditional logic, payment collection, reporting, and workflow automation.

Julius

Julius is an AI-powered data analysis platform that helps individuals and teams explore, clean, transform, and analyze datasets using natural language and advanced reasoning. It combines AI agents wit...

June

June is a product and customer analytics platform for B2B SaaS companies. It combines company-level analytics, product analytics, and customer data integrations with Salesforce, HubSpot, and Attio, plus SQL and AI-assisted custom insights, computed traits, alerts, and an embed API.

KaiMail

KaiMail is a developer-focused email forwarding service for custom domains. It accepts mail through MX records, forwards messages to an existing inbox with ARC and DKIM signing, and can also deliver inbound mail as JSON payloads over HTTP webhooks.

Kanban Tool is a web-based Kanban board application for visual project management and team collaboration. It supports real-time board updates, task assignments, comments, email notifications, customizable workflows, swimlanes, card templates, and time tracking.

Keploy

Keploy is an open-source testing platform that records real API traffic with eBPF and replays it in CI as deterministic regression tests, auto-generated mocks, and production-like sandboxes. It suppor...

Ketch

Ketch is a privacy management platform that provides cookie banners, consent management, DSR automation, data mapping, risk assessments, preference management, and data sentry features. The product co...

KillBait

KillBait is a news curation and submission service that evaluates submitted URLs through a public API and publishes selected items as news highlights. The API accepts a URL, language, and API key, the...

Killercoda

Killercoda is a browser-based platform for running interactive technical scenarios and playgrounds. The site offers free scenarios, course content, and certification-oriented labs, with separate paid ...

Kinde

Kinde is a developer platform for authentication, billing, access management, feature flags, and user management in SaaS applications. It provides hosted auth flows, SDKs for multiple languages and fr...

Kiro

Kiro is an agentic AI development environment that helps developers move from prototype to production with spec-driven workflows. It combines an IDE and CLI experience with structured requirements, architectural planning, task execution, and autonomous agents to support complex software delivery.

Klaviyo

Klaviyo is a B2C CRM and marketing automation platform built to help brands unify customer data and activate it across email, SMS, WhatsApp, mobile push, and related channels. It combines messaging, a...

Knock

Knock is a customer engagement infrastructure platform for product, marketing, and transactional messaging. It provides workflows, broadcasts, guides, preferences, observability, and developer tooling for sending notifications across email, SMS, push, chat, and in-app channels.

kogiQA

kogiQA is a UI automation tool for web applications that uses natural-language selectors instead of CSS or XPath. The landing page shows examples such as click("New User") and type("Name", "Marc"), an...

Koyeb

Koyeb is a high-performance cloud platform for deploying APIs, inference workloads, databases, and production applications without managing servers or infrastructure. It provides serverless containers...

Kraken.io

Kraken.io is an image optimization and compression service that processes JPG, PNG, WebP, GIF, SVG, AVIF, HEIC, and PDF files through a web interface and API. It supports lossy, lossless, and expert optimization modes, plus resizing, cropping, and format conversion.

Kreya

Kreya is a desktop API client for macOS, Windows, and Linux that supports gRPC, REST, GraphQL, WebSocket, and Server-Sent Events workflows from a single workspace. It includes request testing, snapshot comparisons, scripting, CLI automation, and Git-based project files for version control.

Kumu

Kumu is a relationship mapping platform for organizing complex data into interactive maps. It supports stakeholder mapping, systems mapping, social network mapping, community asset mapping, and concept mapping, with built-in presentation and publishing features for sharing maps online.

KwesForms

KwesForms is a form endpoint service for developers that accepts HTML form submissions, sends notification and autoresponder emails, and stores submission data for later management. The service works ...

LabEx

LabEx is an online learning platform for Linux, DevOps, cybersecurity, programming, and data science that uses interactive labs, skill trees, and real-world projects instead of video-based lessons.

Langfuse

Langfuse is an open-source AI engineering platform for tracing, monitoring, prompt management, evaluations, experiments, and analytics around LLM applications and agents. It supports SDK-based tracing...

LangWatch

LangWatch is an LLM engineering platform for testing, evaluating, observing, and governing AI agents. It combines simulation-based agent testing, offline and online evaluations, production tracing, prompt management, and governance controls in a single product.

LaunchDarkly

LaunchDarkly is a runtime control platform for feature flags, feature management, experimentation, and release governance. It helps teams ship software safely, target experiences to specific users or segments, and adjust behavior in production without redeploying code.

LeanCloud

LeanCloud is a serverless backend platform that provides database storage, server-side logic with LeanEngine, instant messaging, push notifications, SMS, and multiplayer game services. It supports nat...

Leapcell

Leapcell is a platform-as-a-service for deploying web applications, APIs, and background workloads in supported runtimes including TypeScript, Python, Go, and Rust. The service includes serverless com...

Leiga

Leiga is a project management platform for product, engineering, and delivery teams. It provides boards, tables, backlogs, roadmaps, releases, time tracking, dashboards, custom workflows, custom field...

Libre QR

Libre QR is a hosted QR code and barcode generator that creates static and dynamic QR codes, short links, and barcode formats from a web interface. The service includes QR templates for text, URL, pho...

Lightfeed

Lightfeed is a competitor intelligence platform for modern retailers and brands. It helps teams monitor pricing, promotions, assortment changes, product matching, and SEO signals across competitor retail chains and store locations.

lil'bots

lil'bots is a hosted platform for creating, deploying, and sharing AI-powered scripts and bots. It provides a web IDE with JavaScript and Python support, a Monaco-based editor, built-in API access to ...

Linear

Linear is a product development system designed for modern teams and AI-assisted workflows. It combines issue tracking, planning, agent-driven execution, code review, and progress monitoring in a single workspace so teams can move from intake to delivery with less friction.

Linkinize

Linkinize is a team bookmark manager delivered as a browser extension and web app. It lets users tag, search, import, and share bookmarks across workspaces, with support for browser extensions on Chrome, Firefox, Edge, Opera, and Brave.

linkok.com

linkok.com is a broken link checker that scans websites for link errors and reports results by email. It runs periodic scans, retries after temporary errors to reduce false positives, and provides a full report for review.

Liveblocks

Liveblocks is a realtime infrastructure platform for multiplayer apps and collaborative AI workflows. It provides hosted primitives for presence, broadcast events, synced storage, feeds, and threads, ...

Loader.io is a cloud-based load testing service for web applications and API endpoints. It lets developers register a target host through the web interface or API, run tests that simulate concurrent connections, and monitor results in real time.

Loadly.io

Loadly.io is a web-based app distribution platform for iOS and Android builds. It accepts APK and IPA uploads, then generates a distribution link or QR code so testers can download and install builds without using the App Store.

Localazy

Localazy is a software localization platform that manages source strings, translations, and delivery across apps, websites, CMS tools, and design files. It supports CLI, API, mobile SDKs, webhooks, tr...

Localhero.ai

Localhero.ai is a localization workflow tool that connects to GitHub pull requests and translates new strings automatically. It supports Rails YAML, React and Vue JSON, and Django or Phoenix .po files, with edits available in a browser UI and synced back to the codebase.

Localizely

Localizely is a localization platform for web and mobile apps. It centralizes translation files, project branches, tasks, screenshots, translation memory, glossary, QA checks, and integrations such as GitHub, GitLab, Bitbucket, Figma, and AWS S3.

LocalOps

LocalOps is an internal developer platform that provisions, deploys, monitors, scales, and secures services on a customer’s AWS, GCP, or Azure account from a single control plane. It connects to GitHu...

LocalXpose is a secure tunneling service that exposes local servers to the internet through encrypted tunnels. It provides CLI and desktop app workflows for HTTP, HTTPS, TCP, TLS, and UDP tunneling, w...

LocationIQ

LocationIQ provides geocoding, reverse geocoding, autocomplete, routing, and map tile APIs for applications that need location search and map display. The service exposes HTTP APIs for converting coordinates to addresses, searching places, and rendering static or dynamic maps.

Lockit

Lockit is a Slack app for reserving, locking, releasing, and managing shared resources such as development environments, staging environments, servers, conference rooms, and software licenses. It expo...

Loco

Loco is a translation management system for developers that handles string management, translator collaboration, machine translation, and export of translation files for multi-language apps and websit...

LogDog

LogDog is a mobile debugging tool for iOS and Android apps. It collects network requests, logs, analytics events, screenshots, and other app activity from an SDK installed in the application, then streams that data to a web dashboard over WebSocket connections.

Logflare

Logflare is a hosted logging and log analytics service for Cloudflare, Vercel, Elixir, and JavaScript applications. It ingests events from integrations such as Cloudflare Workers, OpenTelemetry, Elixi...

LoginLlama

LoginLlama is an API for login fraud detection that scores authentication attempts in real time before a user is authenticated. It accepts a login request, auto-detects IP address and user agent from ...

LoginTC is a multi-factor authentication platform from Cyphercor that adds second-factor verification to RDP, Windows logon, VPNs, Office 365, ADFS, OWA, RADIUS, and other supported applications. It s...

Logo.dev

Logo.dev provides a logo API for developers that returns company logos by domain, name, or ticker. The service is hosted on a CDN and exposes logos through image URLs and API endpoints, with options such as format, size, retina output, fallback monograms, dark mode, grayscale, and company search.

Logspot

Logspot is a real-time product and web analytics platform that collects events, pageviews, traffic sources, funnels, and user journey data from a website or application through a lightweight tag. It p...

Logto

Logto is an authentication and authorization platform for developers. It implements OIDC and OAuth 2.1 and adds sign-in flows, multi-tenancy, enterprise SSO, RBAC, MFA, organizations, machine-to-machine authentication, and account APIs for SaaS and AI applications.