Open Source Alternatives To Popular Software

Open source alternatives to Google Drive.

Google Fonts is a free web font service by Google, offering hundreds of open-source fonts for use in websites and apps.

Google Forms is a free online survey and form creation tool from Google, used for collecting data, creating quizzes, and running polls.

A simple, fast note-taking and list-making app by Google with color-coded notes, labels, reminders, and cross-device syncing.

A web mapping platform and consumer application offered by Google. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets, real-time traffic conditions, and route planning for traveling by foot, car, bike, air, and public transportation.

Google Maps Timeline (formerly Google Location History) is a feature that shows a map of where you have been, based on your location history from your Android device or Google Maps app.

Google Meet is a video conferencing service by Google, enabling secure and high-quality video meetings for individuals and teams.

Google Phone is the default dialer app preinstalled on Android devices. It provides calling, contact management, call screening, spam protection, and integration with Google services like Caller ID and Visual Voicemail.

Google Photos is a photo storage and sharing service by Google, offering automatic backup, organization, and AI-powered search for your photo library.

Google Search is the world's most popular search engine, offering web search, image search, news, maps, and AI-powered overviews. It tracks user queries and behavior to personalize results and serve targeted advertising.

Google Search Console is a free web service by Google that helps website owners monitor and optimize their site visibility in Google Search results.

Google Sheets is a web-based spreadsheet application by Google, enabling real-time collaboration on spreadsheets with powerful data analysis features.

Google Slides is a cloud-based presentation app in Google Workspace. It runs entirely in the browser, offers real-time multi-user collaboration, version history, comments, and easy sharing, and integrates with other Google services like Drive, Meet, and Gemini AI.

Google Tag Manager is a tag management system by Google that allows marketers and developers to deploy and manage tracking codes and marketing tags without editing website code.

Open source alternatives to Google Translate.

Google Vault is the retention, eDiscovery, and legal hold service included with Google Workspace editions. It lets administrators search, retain, and export users’ Gmail, Drive, Chat, and Meet data to support legal, compliance, and internal investigation needs.

Google reCAPTCHA is a free CAPTCHA and bot-detection service operated by Google. It protects websites against spam and abuse using risk analysis based on user behavior, device signals, and in newer versions, invisible background scoring. Because it runs on Google infrastructure, sites embed Google scripts and users interaction data is processed by Google, which has drawn ongoing privacy criticism in the EU.

AI-powered meeting recorder and conversation intelligence platform that captures, highlights, and shares key moments from video calls.

Guidemate is a commercial platform for audio walks used for sightseeing, artistic productions, and educational tours created by schools and universities. Creators publish their own guides through its authoring tools, and listeners buy or follow GPS-assisted audio tours in the mobile apps; the catalogue covers hundreds of cities worldwide.

Gunbot is a self-hosted cryptocurrency trading bot that runs locally on Windows, Linux, and macOS. It offers 20+ pre-built strategies, custom strategy building, and privacy-first execution with a one-time lifetime license.

HARPA AI is a Chrome browser extension that combines AI-powered page summarization, web automation, and SEO monitoring using cloud LLMs like GPT and Claude. Paid plans gate most features behind a subscription.

HERE Technologies provides commercial mapping APIs and SDKs for maps, routing, geocoding, traffic, and location services, widely used in automotive and enterprise apps.

HabitBull is a habit tracking app that helps users build and maintain positive routines. It features streak tracking, statistics, reminders, and data synchronization across devices. Available on iOS and Android with a premium subscription for advanced features.

HabitKit is a habit tracking app with a GitHub-style activity grid visualization. It offers a modern interface for building and maintaining daily habits with streak tracking, statistics, and a clean design. Available on iOS and Android with a paid premium tier.

A gamified habit tracker that turns your daily tasks and goals into an RPG-style game with rewards, parties, and quests.

Habitify is a cross-platform habit tracker for iOS, Android, macOS, and the web built around daily check-ins, streaks, completion charts, and analytics, with data synced across devices. The free plan covers a limited number of habits, while unlimited habits, advanced stats, and other extras are gated behind a recurring premium subscription.

HackerOne is a commercial bug bounty and vulnerability disclosure platform that connects organizations with a large community of security researchers. It manages program workflows, triage, and bounty payments, and offers AI-assisted and managed services tiers.

Transcription and subtitling platform powered by AI and professional human transcribers.

Harvest is an elegant cloud-based time-tracking and invoicing platform that empowers teams and freelancers to monitor hours, expenses, budgets, and profitability—all in one place. Accessible via web, desktop, and mobile apps, it simplifies logging time with timers or manual entries, sends reminders, integrates seamlessly with tools like Asana, Slack, Stripe, and PayPal, and transforms tracked work into professional invoices with customizable templates and payment support. Rich visual reports help teams stay productive, avoid burnout, and manage project budgets effectively—all while keeping operations smooth and billable.

HashiCorp Vault is a commercial secrets management platform that centrally stores, accesses, and distributes secrets such as API keys, passwords, certificates, and encryption keys. It offers dynamic secrets, leases, audit logging, and identity-based access policies, with a free self-managed edition and paid cloud and enterprise tiers.

Headway is a SaaS product-update widget that lets product teams publish changelogs, announcements, and feature releases embedded directly in their website or app, with email notifications and analytics.

Digital insights platform that captures every user interaction automatically for retroactive analysis.

Hearonymus is a commercial smartphone audio guide system for museums, exhibitions, tourism regions, and attractions. Institutions can have content produced externally or in-house, publish it through the Hearonymus platform, and visitors download guides to the Hearonymus app for offline playback.

Help Scout is a commercial cloud help desk built around shared inboxes for email and chat, with customer profiles, saved replies, workflows, reporting and a knowledge base called Docs. It is priced per mailbox, user and Docs site, and has no self-hosted option.

Heroes of Might and Magic is a turn-based strategy game franchise originally developed by New World Computing and now owned by Ubisoft. First released in 1995, the series combines two layers of gameplay: turn-based empire management on a strategic overworld map (building towns, recruiting armies, gathering resources) and tactical hex-grid combat where the player commands a small army of creatures in battle. The franchise spans seven main entries plus numerous spin-offs and expansions, with *Heroes III* (1999) and its *Armageddon’s Blade* / *Shadow of Death* expansions widely regarded as the peak of the series. Ubisoft has not released a new mainline entry since *Might & Magic Heroes VII* (2015), but the older games remain available on GOG and Steam and maintain a large competitive community around *Heroes III* specifically. The proprietary commercial releases contrast with several open source community projects inspired by the same hybrid turn-based / tactical formula.

Open source alternatives to Heroku.

Hevy is a popular mobile workout tracker for weightlifting and strength training. It helps users log workouts, track progress, analyze performance, and follow structured training programs. Available on iOS and Android with optional premium subscription tiers.

Hexowatch is an AI-powered website monitoring and change detection platform that tracks visual, content, source code, and technology stack changes across web pages.

HiddenLayer is a commercial AI security platform that protects AI models and agentic AI systems. Its agentic and MCP security product inspects agent runtime traffic to detect indirect prompt injection, unsafe tool use, memory contamination, and sensitive data exposure across MCP servers and agent frameworks. It is sold as an enterprise subscription rather than a self-hosted open-source tool.

Homebase is an employee scheduling and time-tracking SaaS for small businesses with hourly teams, providing shift scheduling, time clocks, team chat, and payroll integrations on a freemium model with paid tiers per location.

Honey, owned by PayPal, is a browser extension that automatically finds and applies coupon codes at checkout and lets users add items to a droplist to get price-drop alerts from participating retailers.

Error tracking, uptime monitoring, and log management service aimed at small development teams. Honeybadger focuses on readable exception reports and straightforward alerting.

Open source alternatives to Hootsuite.

Hotjar is a behaviour analytics and user feedback service developed by Contentsquare. It provides heatmaps, session recordings, and on-site surveys to help teams understand how users interact with their websites.

HubSpot is an all-in-one CRM platform by HubSpot, Inc. that provides tools for marketing, sales, customer service, and content management. It is particularly popular among small and medium-sized businesses for its freemium model and intuitive interface. HubSpot offers features like contact management, email marketing, pipeline tracking, and analytics, all integrated into a single platform.

Open source alternatives to IFTTT.

Online meme generator and meme search engine. The largest collection of memes on the internet with tools to create, caption, and discover memes.

Imgur is a widely used online image hosting and sharing platform. It allows users to upload images, create galleries, and share them via direct links. It is popular for hosting memes, screenshots, and other media content.

Incident.io is a SaaS incident management platform for declaring, coordinating, and reviewing incidents. It offers Slack-first workflows, status pages, and on-call scheduling.

Inoreader is a web-based content and RSS feed reader with powerful automation, rules, and folder-based organization. It supports OPML import/export, full-text search, offline reading, and integration with dozens of third-party services.

Instagram is Meta's photo and video sharing social network. Users upload media, follow others, browse a feed of posts, and explore content via Reels and Stories. It is one of the world's most popular social media platforms.