- Free tierUnboundedFTV 84

Coveralls
Coveralls is a code coverage reporting service that ingests coverage data from CI runs and shows repository coverage history, file-level reports, line-by-line coverage, repository overviews, coverage ...
- Free tier$8.00 / moFTV 48
Coverity Scan
Coverity Scan is a static analysis service for registered open source projects. It analyzes submitted builds and source code to find defects and vulnerabilities across Java, C/C++, C#, JavaScript, Ruby, and Python projects, then presents the results for developer triage and remediation.
- Free tier$5.00 / moFTV 55

CraftMyPDF
CraftMyPDF is a PDF generation API and template editor that creates PDFs and images from reusable templates and JSON data. It supports drag-and-drop template design, JavaScript-style expressions, fill...
- Free tier$1.00 / moFTV 22

CrateDB
CrateDB is a distributed SQL database for live operational data. It supports time-series, JSON, full-text, vector, geospatial, and structured data in one engine, with standard SQL for joins, aggregations, and window functions.
- Free tier$3.00 / moFTV 54
cron-job.org
cron-job.org is a hosted cron job scheduler that executes HTTP requests for websites and scripts at configured intervals, from once per minute up to once per year. It supports custom request methods, ...
- Free tier$1.50 / moFTV 47

Cronhooks
Cronhooks is a webhook scheduling service that triggers HTTP requests at specific dates and times or on recurring intervals using cron expressions. It exposes a REST API for creating ad-hoc and recurring schedules, supports timezone-aware execution, and sends failure alerts by email or Slack.
- Free tier$7.00 / moFTV 46

Cronitor
Cronitor is a monitoring platform built for developers and operations teams that need reliable visibility into jobs, websites, APIs, and infrastructure events. It combines cron job monitoring, uptime checks, heartbeat tracking, status pages, and real user monitoring in a single product.
- Free tier$3.00 / moFTV 51
Crosswork
Crosswork is project management software for teams. It provides multiple work views, including list, gallery, and kanban, along with filters, grouping, sorting, tags, subtasks, custom types, statuses, workflows, reports, analytics, and task/project cloning.
- Free tier$3.00 / moFTV 41
Crowdin
Crowdin is an AI-powered localization platform for managing translation workflows across software, mobile apps, websites, games, marketing content, and documentation. It connects with source control, ...
- Intro tier$2.00 / moFTV 27

Crypteron
Crypteron is a developer security platform for backend C# and Java applications that adds application-layer encryption, tamper protection, key management, and audit trails. It integrates through SDKs,...
- Free tier$25 / moFTV 57
Crystallize
Crystallize is a headless commerce platform that combines product information management, content management, and commerce in one GraphQL-based system. The platform exposes a GraphQL API, MCP support ...
- Free tier$16 / moFTV 62
Cube
Cube is an analytics platform that provides a universal semantic layer for BI, embedded analytics, spreadsheets, and agentic analytics workflows. It connects to data sources, defines governed semantic...
- Free tier$5.00 / moFTV 47
CurlHub.io
CurlHub is a no-install debugger for API requests. It lets developers inspect API traffic and create a simple request bin without installing local tooling.
- Free tier$2.00 / moFTV 48

Currency Api
Currency Api is a currency conversion and exchange rate API for developers. It provides live rates through a REST endpoint, with JSON or XML responses for 166 supported currencies, cryptocurrencies, and metals.
- Free tier$2.00 / moFTV 49

Currencyapi.com
Currencyapi.com provides a JSON REST API for current and historical foreign exchange rates. It exposes endpoints for latest rates, historical rates, and currency conversion data, with examples shown for cURL, PHP, Node.js, and Java.
- Free tier$2.00 / moFTV 50
CurrencyBeacon
CurrencyBeacon is a REST API for live and historical currency exchange rates, currency conversion, and blockchain-related data. The service covers 170+ fiat currencies, over 200 world currencies, and 6,000 cryptocurrencies, with historical rates available back to 1995.
- Free tier$1.50 / moFTV 45
CurrencyFreaks
CurrencyFreaks provides a REST API for currency exchange rates, currency conversion, historical forex data, and currency fluctuation data in JSON and XML formats. The service supports 1,025 currencies...
- Free tier$2.00 / moFTV 39
Currencylayer
Currencylayer is a JSON currency exchange rates API that provides real-time, historical, and conversion endpoints for 168 world currencies and precious metals. It supports live, historical, and conver...
- Free tier$3.00 / moFTV 51
CustomJS
CustomJS is a developer tool for running JavaScript, hosting HTML pages and forms, generating PDFs, and capturing screenshots through an HTTP API and integrations such as Make.com and n8n.
- Always freeUnboundedFTV 100
CyberChef
CyberChef is a browser-based web application for analysing, decoding, and transforming data with a drag-and-drop recipe interface. It runs entirely in the browser with no server-side component, and su...
- Free tier$67 / moFTV 72

Cypress
Cypress is a browser-based testing platform for JavaScript applications. It provides an open-source Cypress App for writing, running, and debugging end-to-end and component tests directly in the brows...
- Free tier$3.00 / moFTV 49
Daestro
Daestro is a container orchestrator for batch jobs and cron jobs. It exposes a job submit API for running workloads from an application, and it can execute jobs on cloud providers or on self-hosted Docker-based compute.
- Always freeUnboundedFTV 100

daily.dev
daily.dev is a developer news and community platform that aggregates articles, tools, frameworks, and industry updates into a personalized feed. It is available as a web app and browser extension, with mobile apps for iOS and Android.
- Free tier$10 / moFTV 50

dAppling
dAppling is a decentralized frontend deployment platform for web3 applications. It connects to a GitHub repository, autodetects the frontend framework, and builds and deploys on every push. The servic...
- Free tier$5.00 / moFTV 56
Data Fetcher
Data Fetcher is an Airtable extension that connects external APIs and remote files to Airtable without code. It supports importing data from JSON, CSV, XML, RSS, Google Sheets, and common SaaS integrations, then mapping and transforming the response into Airtable records.
- Free tier$2.00 / moFTV 49

Data Miner
Data Miner is a browser extension for Google Chrome and Microsoft Edge that extracts data from web pages into CSV or Microsoft Excel files. It supports one-click scraping from public recipes, custom extraction rules, pagination, crawl jobs, and form filling automation.
- Free tier$4.00 / moFTV 40

Datadog
Datadog is a cloud monitoring and security platform that collects metrics, traces, logs, events, and other telemetry from infrastructure, applications, databases, containers, serverless workloads, and...
- Free tier$1.00 / moFTV 46

Dataimporter
Dataimporter is an intelligent import and data movement platform for Salesforce. It helps teams load, migrate, transform, and automate data workflows without relying on manual spreadsheet handling or repetitive admin work.
- Free tier$4.00 / moFTV 45

Datelist
Datelist is an online appointment scheduling system that lets customers book time slots from a website or social networks. It provides a widget for embedding on a site, a dedicated booking page, calen...
- Free tier$39 / moFTV 70

DatoCMS
DatoCMS is a headless CMS that exposes content through APIs for websites and other digital products. The pricing page states a free plan with 2 editors, 300 records, 10GB of traffic, and 100k API calls per month, with no overages allowed.
- Free tier$29 / moFTV 57

Datree
Datree is a Kubernetes policy enforcement tool that blocks deployments of misconfigured resources through an admission webhook. It checks new configuration changes against built-in policies and can also scan locally before deployment so sensitive data stays inside the environment.
- Free tier$9.00 / moFTV 51

DB Designer
DB Designer is an online database schema design and modeling tool. It lets users create ER diagrams in the browser, import existing databases, and generate SQL scripts for MySQL, MSSQL, PostgreSQL, Oracle, and SQLite.
- Free tier$2.50 / moFTV 41

DB-IP IP Geolocation API
DB-IP provides an IP geolocation API that returns location and network intelligence data for an IP address. The free API endpoint maps an IP to country, state or province, and city, and the sample response also includes continent codes and names.
- Free tier$2.00 / moFTV 46
Dead Man's Snitch
Dead Man's Snitch is a cron job monitoring service that checks whether scheduled tasks run on time. It provides a unique URL for each job, and the job is marked as monitored when the URL is requested by curl, a browser, or another HTTP client.
- Free tier$1.50 / moFTV 47

Debug Mail
Debug Mail is a hosted fake SMTP server for testing application email flows. Developers point their app to app.debugmail.io and use the project login, password, and port shown in the dashboard to capture outgoing messages instead of delivering them to real recipients.
- Free tier$3.00 / moFTV 45

DeepAR
DeepAR is an SDK for adding augmented reality features to apps on iOS, Android, HTML5, and macOS. It supports face filters, virtual try-on, hair and background segmentation, and emotion detection, and includes demo projects and effect templates for common AR use cases.
- Free credit$100000 creditFTV 69
Deepgram
Deepgram is an enterprise voice AI platform that provides APIs for speech-to-text, text-to-speech, voice agents, and audio intelligence. It is designed for developers, product teams, and enterprises that need to build real-time or batch voice experiences with cloud or self-hosted deployment options.
- Free tier$2.00 / moFTV 37
DeepL
DeepL is a language AI platform that provides text translation, document translation, speech translation, writing assistance, and an API for integrating translation into applications. The platform inc...
- Free tier$15 / moFTV 62
Deepnote
Deepnote is a collaborative analytics and data science notebook platform that runs notebooks in the cloud and supports Python, SQL, charts, dashboards, data apps, ETL/ELT pipelines, scheduling, version history, and integrations with external data sources.
- Free tier$9.00 / moFTV 58
DeepScan
DeepScan is a static analysis service for JavaScript and TypeScript code. It inspects code through semantic analysis and data-flow tracking to find runtime errors, code smells, and quality issues that...
- Free trial$24 / moFTV 43
DeepSource
DeepSource is an AI code review platform that analyzes pull requests and existing codebases with static analysis, security checks, code quality rules, coverage signals, and AI-assisted review comments...
- Free tier$1.50 / moFTV 47

Degoo Cloud Storage
Degoo Cloud Storage is a cloud backup and file storage service with a web app and mobile apps. The page describes AI-based photo discovery, encrypted communication, zero-knowledge encryption, and real-time file sharing with end-to-end encryption.
- Free tier$8.00 / moFTV 58
Deno Deploy
Deno Deploy is a serverless hosting platform for JavaScript and TypeScript applications. It runs deployments on lightweight V8 isolates and supports frameworks and runtimes including Fresh, Vue, Hono,...
- Free tier$3.00 / moFTV 54

DeployHQ
DeployHQ is a deployment automation service that connects to GitHub, GitLab, Bitbucket, or self-hosted repositories and deploys code to servers, VPS instances, static hosting, FTP/SFTP targets, and cl...
- Free tierFTV 47

Deployment
Deployment is an AWS-native deployment platform that helps teams ship AI-written code and application changes to production with confidence. It runs deployments in the customer’s AWS account and supports previews, automated tests, and approval workflows before changes are released.
- Always freeUnboundedFTV 90
deSEC
deSEC is a free DNS hosting service that provides DNS zone management through a web control panel and API documentation. It runs on open-source software and is supported by SSE.
- Free tier$500 / moFTV 85
DevCycle
DevCycle is a feature flag and feature management platform with OpenFeature-native support. It provides SDKs, APIs, a CLI, and a web dashboard for creating, targeting, rolling out, and monitoring flags across client-side, server-side, web, and mobile applications.
- Free tier$3.00 / moFTV 43
DevToolLab
DevToolLab is a browser-based collection of 650+ developer tools for converting, formatting, minifying, encoding, decoding, and inspecting common web data formats. The tools run locally in the browser, which keeps input data on the client side and avoids server-side processing for most utilities.
- Free tier$1.00 / moFTV 44
Diawi
Diawi is a web service for uploading iOS and Android development, ad-hoc, and in-house app builds and generating a private installation link. Developers upload an ipa, zipped .app, or apk, then share ...
- Always freeUnboundedFTV 90

Diff Text
Diff Text is a client-side text comparison tool that shows differences between two blocks of text in a split view. It supports word-level and character-level comparison modes, and it can compare plain text, code, JSON, YAML, HTML, CSS, markdown, and other text formats.
- Free tier$3.00 / moFTV 41
DigitalOcean App Platform
DigitalOcean App Platform is a fully managed Platform-as-a-Service for building, deploying, and scaling web applications, APIs, worker services, and static sites. It streamlines delivery by connecting...
- Free tier$2.00 / moFTV 36
DigitalOcean Container Registry
DigitalOcean Container Registry is a managed private registry for storing and managing container images alongside DigitalOcean infrastructure. It is designed to support modern application delivery wor...
- Free tier$7.59 / moFTV 49
DigitalOcean Functions
DigitalOcean Functions is a serverless computing service that lets developers run code on demand without managing servers. It is designed to help teams focus on application logic while the platform handles scaling, security, and environment maintenance.
- Free tier$1.00 / moFTV 39
DigitalOcean Uptime
DigitalOcean Uptime is a server and endpoint monitoring service that helps teams detect slowdowns, outages, and SSL issues before they affect users. It continuously checks websites, applications, URLs, and IP addresses from multiple global regions and sends alerts through email or Slack.
- Always freeUnboundedFTV 90
DJ Checkup
DJ Checkup is a web-based security checker for Django sites. A user submits a site URL, and the service runs automated checks for common configuration issues such as HTTPS usage, DEBUG mode being enabled, open admin access, and missing security headers.
- Always freeUnboundedFTV 90
DKIMValidator.com
DKIMValidator.com is a web-based email validation service that accepts messages sent to any address at @dkimvalidator.com and then reports DomainKeys, DKIM, SPF, and SpamAssassin results in one place....
- Free tier$2.00 / moFTV 41
DNSExit
DNSExit provides DNS, remote access, email relay, domain, SSL, and hosting services from a single account. The service includes Dynamic DNS for keeping a hostname pointed at a changing IP address, man...
- Free tier<$1 / moFTV 38
DNSPod
DNSPod is a DNS management service that resolves domain names to IP addresses and provides hosted DNS record management. The service includes global DNS clusters, API access, load balancing, URL forwarding, and traffic routing features for managing domain resolution.
- Free tier$3.00 / moFTV 50
DocBeacon
DocBeacon is a document sharing and tracking application that generates secure links for uploaded PDFs and other supported files, then records reader activity after a document is sent. It reports view...
- Free tier$3.00 / moFTV 40

Docker
Docker is a container platform that helps developers build, test, ship, and run software consistently across environments. It brings together containerization, image distribution, security tooling, and developer workflows for local development and cloud deployment.