Open Source Alternatives To Popular Software

Salesforce is a leading cloud-based CRM platform developed by Salesforce, Inc. It offers a comprehensive suite of tools for sales, marketing, customer service, and analytics, helping businesses manage customer relationships, automate workflows, and gain insights from data. Salesforce is widely used by enterprises of all sizes and offers a vast ecosystem of third-party apps via its AppExchange marketplace.

Headless CMS platform with real-time editing.

Web scraping API that handles proxies, browsers, and CAPTCHAs so developers can scrape any page with a simple API call. Supports JavaScript rendering and geotargeting.

Headless browser scraping API with proxy rotation and anti-bot protection. Offers affordable plans for extracting data from JavaScript-rendered web pages.

Web scraping API with proxy rotation, JavaScript rendering, and anti-bot bypass. Designed for developers who need reliable data extraction at scale.

Screen Studio is a premium macOS screen recorder that automatically adds zoom effects, cursor animations, and background blur to create polished product demo videos.

ScreenFlow is a paid screen recording and video editing app from Telestream for macOS. It captures the screen and camera, provides editing with titles, transitions, and animations, and is popular for demos, tutorials, and screencasts.

Scribd is a subscription-based digital library owned by Scribd, Inc. (the consumer product was rebranded to Everand in 2023). It provides unlimited reading and listening to a catalogue of ebooks, audiobooks, magazines, podcasts, and documents for a single monthly fee, distributed through iOS, Android, and web apps.

Seeking Alpha is a crowd-sourced investment research platform offering stock analysis, dividend ratings, portfolio tracking, and earnings data. Its Premium service provides quant ratings and dividend safety scores.

Seetickets is a UK-based ticketing agency focused on live music, club nights, and events. It sells tickets on behalf of promoters and venues, primarily across the UK and Europe.

Semrush is an all-in-one online visibility management and content marketing SaaS platform. It provides tools for SEO, competitive analysis, keyword research, backlink analysis, site audits, and paid advertising research.

Open source alternatives to Sendgrid.

Sensor Tower is a mobile market intelligence platform that combines app download, revenue and usage estimates with ASO keyword tracking tools, sold to publishers, investors and agencies as enterprise subscriptions.

Sentry is a cloud-based error tracking and performance monitoring platform that helps developers diagnose, fix, and optimize their code in real time.

ServiceNow Software Asset Management (SAM Pro) is a module of the ServiceNow platform. It tracks software purchases, normalises discovered software inventory, reclaims unused licenses, and reports on license compliance and optimization. It is a commercial enterprise product licensed through ServiceNow.

Sharesight is an online portfolio tracker and reporting tool for self-directed investors. It automatically tracks dividends, capital gains, and currency impacts across multiple brokers and asset classes, with tax reporting built in.

Shoeboxed is a receipt scanning and expense tracking service that turns paper receipts, business cards, and invoices into categorized digital records. It offers human data entry as well as OCR, IRS-accepted digital storage, and integrations with QuickBooks, Xero, and FreshBooks.

Shopify is a cloud-based e-commerce platform that allows businesses and individuals to create, customize, and manage online stores. It provides tools for selling products, processing payments, managing inventory, marketing, and analyzing sales—all without needing advanced technical skills. Shopify supports both online and in-person sales through its POS (point of sale) system, making it popular with small businesses and large enterprises alike.

Short.io (formerly Short.cm) is a white-label URL shortener designed for businesses. It offers custom domains, detailed analytics, team management, API access, and integrations with popular marketing tools. The platform focuses on privacy and does not show ads on redirect pages.

SigFig is a robo-advisor and portfolio management platform that provides automated investment advice, portfolio tracking, and wealth management tools. It offers free portfolio tracking and managed investment services with low fees.

SimCity 2000 is Maxis's 1993 city-building simulation, published by Electronic Arts. Players zone land, build infrastructure and manage a city's budget and services. It is sold today as SimCity 2000 Special Edition.

No-code web scraper that extracts data from websites and sends it directly to Google Sheets, Airtable, or APIs. Offers a visual selector and cloud scheduling.

Simplecast is a podcast hosting platform built for creators and businesses. It provides industry-leading analytics, one-click distribution, and tools for podcast management and growth.

Simply Wall St is a visual stock analysis platform that turns complex financial data into easy-to-understand infographics. It includes dividend checks, portfolio analysis, and snowflake visualizations for company health.

Trimble SketchUp is a 3D modeling application known for its easy push/pull workflow and its popularity among architects, interior designers, and woodworkers. It is sold as a subscription (Go, Pro, and Studio plans) with a limited free web version.

Open source alternatives to Skype.

Open source alternatives to Slack.

Sling is a workforce management platform from Toast (formerly Sling.ai) for scheduling employee shifts, tracking time and attendance, and messaging hourly teams. It offers a free tier for small teams and paid plans per user with advanced scheduling, labor cost forecasting, and POS integrations.

Smartify is an audio guide and museum companion app that uses image recognition to identify artworks and serve audio tours, artist information, and curated content. Museums and galleries use it as an interpretive platform, and visitors scan exhibits with their phone camera to hear the stories behind them.

Snow License Manager is an enterprise software asset management (SAM) platform from Snow Software. It inventories installed software across desktops and servers, reconciles deployments against license entitlements, and manages compliance and license position reporting. It is a commercial product typically deployed at enterprise scale.

Snyk Code is an AI-powered static application security testing (SAST) tool that scans code for vulnerabilities in real-time. It integrates with IDEs and CI/CD pipelines to provide security-focused code reviews and vulnerability fixes.

Parametric 3D CAD suite from Dassault Systèmes for mechanical design, simulation, data management and manufacturing, licensed per seat through regional resellers.

AI-powered transcription, translation, and subtitling platform that automatically converts audio and video files into searchable text.

Sortly is a cloud-based visual inventory management app for businesses and households. It lets users catalog items with photos, tags, and custom fields, scan barcodes and QR codes, manage stock levels across multiple locations, and share inventories with team members. It runs on a freemium subscription model with a hosted web app plus iOS and Android apps.

Speechify is a commercial text-to-speech app that reads web articles, PDFs, documents, and books aloud using a library of synthetic voices. It is sold as a subscription with character and usage limits, and audio lives inside its own apps rather than in a portable feed you control.

A widely-used web and mobile internet speed testing service that measures download speed, upload speed, and latency. Available at speedtest.net.

Feature delivery and experimentation platform, now part of Harness, offering feature flags, gradual rollouts, and impact measurement as a commercial SaaS product.

Splunk is a commercial data platform for searching, monitoring, and analyzing machine-generated data at scale. Best known for log management, IT operations analytics, and SIEM security capabilities, it is widely used by enterprises. It runs on a proprietary indexing engine and is licensed primarily on daily data ingest volume.

Spotify is a music and podcast streaming subscription service owned by Spotify AB, headquartered in Stockholm, Sweden. It provides access to a catalogue of over 100 million songs and 6 million podcasts to more than 600 million monthly active users across 180+ markets, distributed via iOS, Android, desktop apps, web player, and integrations with smart speakers, game consoles, cars, and wearables. The service combines on-demand streaming with personalised recommendations, curated playlists, algorithmic discovery (Discover Weekly, Release Radar, Daily Mixes), social features (Friend Activity, Blend, Jams), and tools for artists and podcasters (Spotify for Artists, Spotify for Podcasters). Subscription tiers include Spotify Free (ad-supported), Spotify Premium (ad-free, offline playback, higher audio quality), and Spotify Family/Duo/Student plans.

Spotify for Podcasters (formerly Anchor) is a free podcast hosting platform owned by Spotify. It offers easy creation, distribution, and monetization tools, though it ties creators to the Spotify ecosystem.

Squarespace is an all-in-one website building and hosting platform designed to help individuals, creatives, and businesses create professional-looking websites without needing to code. It offers customizable templates, drag-and-drop design tools, built-in e-commerce features, and integrated marketing solutions like email campaigns and SEO tools. With its sleek, design-focused approach, Squarespace is especially popular among entrepreneurs, artists, and small businesses looking to showcase their brand or sell products online.

Stack Overflow is the largest public Q&A community for programmers, owned by Stack Exchange. Users post and answer programming questions, vote on quality, and earn reputation. For companies it offers Stack Overflow for Teams, a paid private knowledge-sharing version used by engineering organizations, along with enterprise offerings.

Commercial product experimentation platform offering feature gates, dynamic configs, experiments, and analytics; acquired by OpenAI in 2025.

Statuspage (by Atlassian) is a hosted status page service that lets companies communicate downtime and system status to their customers and teams.

Open source alternatives to Steam.

Stock Rover is a stock research and portfolio analysis platform offering in-depth financial data, screening, and portfolio tracking for individual investors. It provides detailed dividend analysis, historical comparisons, and custom metrics.

Stoplight is an API design, documentation, and governance platform that provides visual OpenAPI editing, mock servers, and automated API style guides. It helps teams standardise and scale their API programs.

StoryGraph is a reading-tracking and book-recommendation service launched in 2019 as a privacy-friendly alternative to Goodreads. It offers personalized recommendations, mood- and pace-based discovery, reading challenges, content warnings, and detailed statistics. Operated as a freemium subscription service.

Storyblok is a proprietary headless CMS with a visual editor, component-based content blocks, and hosted APIs. It targets developers and content teams with a paid SaaS model.

Open-source headless CMS built with Node.js.

Strava is a social fitness network and mobile app used for tracking athletic activity via GPS. It connects millions of runners, cyclists, hikers, walkers, and other active people through the sports they love.