Free & open source alternatives to paid software

116 free and open source apps that replace 40 well-known paid products, with the platforms they run on, the files they open, and the official ways to use the original for free.

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All free apps

LibreOfficeLibreOfficeOpen-source office suite that replaces Microsoft Office: Writer, Calc, Impress and Draw.Office & PDFOpen source AffinityAffinityA professional design suite combining photo editing, vector and page layout in one app.Design & photo ONLYOFFICE DesktopONLYOFFICE Desktop5,705Open-source office suite with a ribbon interface like modern Office.Office & PDFOpen source WPS OfficeWPS OfficeLightweight office suite from Kingsoft that looks almost identical to Microsoft Office.Office & PDF Google Docs, Sheets, SlidesGoogle Docs, Sheets, SlidesGoogle's browser-based office suite, free with a Google account.Office & PDF AppFlowyAppFlowy78,427Open-source Notion-style app for notes, databases and task boards.Notes & teamworkOpen source PenpotPenpot62,175An open-source, browser-based tool for designing web and app interfaces, Figma-style.Design & photoOpen source PlanePlane62,140Open-source project management tool, an alternative to Jira, Linear and Trello.Notes & teamworkOpen source n8nn8n209,797Zapier-style workflow automation with drag-and-drop steps, 400+ integrations and AI steps.Web & online business PhotopeaPhotopeaA browser-based image editor whose interface closely mirrors Photoshop.Design & photo InkscapeInkscapeAn open-source vector editor for logos, icons, posters and vinyl cutting.Design & photoOpen source Adobe ExpressAdobe ExpressAdobe's quick design tool, similar to Canva, for social posts, posters, background removal and short videos.Design & photo OllamaOllama186,318Runs open AI models (Llama, Qwen, Gemma, DeepSeek and more) on your own computer.AIOpen source Open WebUIOpen WebUI158,070Self-hosted ChatGPT-style interface for teams that connects to Ollama or vendor APIs.AI JoplinJoplin57,074Open-source Evernote alternative with notebooks, tags, web clipper, to-dos and end-to-end encryption.Notes & teamworkOpen source ExcalidrawExcalidraw135,319Open-source, hand-drawn style whiteboard that runs in the browser.Office & PDFOpen source FreeCADFreeCAD35,243Open-source parametric 3D modeling for mechanical design, architecture (BIM) and 3D printing.CAD, 3D & statisticsOpen source RustDeskRustDesk128,600Open-source remote desktop app and an alternative to TeamViewer and AnyDesk.PC utilitiesOpen source BlenderBlenderA complete open-source 3D suite: modeling, sculpting, animation, photorealistic rendering and video editing.CAD, 3D & statisticsOpen source OpenProjectOpenProject17,109Open-source project management for organizations, with Gantt charts and agile boards.Notes & teamworkOpen source ShotcutShotcut15,629A lightweight open-source video editor that opens most formats without converting them first.Video & audioOpen source OpenShotOpenShot6,754The easiest open-source video editor for beginners: drag and drop, trim, add titles and transitions.Video & audioOpen source KdenliveKdenliveAn open-source multi-track video editor with effects and transitions.Video & audioOpen source ArdourArdour5,414An open-source digital audio workstation (DAW) for multitrack recording, mixing, MIDI and VST/LV2 plugins.Video & audioOpen source ScribusScribusOpen-source desktop publishing for magazines, books, flyers and catalogs.Design & photoOpen source DaVinci ResolveDaVinci ResolveProfessional video software for editing, color grading, effects and audio, with a very complete free version.Video & audio ClipchampClipchampMicrosoft's video editor, built into Windows 11 and also available in the browser.Video & audio ObsidianObsidianNote-taking app built on local Markdown files that you link into a web of knowledge.Notes & teamwork Stirling-PDFStirling-PDF95,986Open-source PDF toolkit you host on your own server with Docker, with 50+ operations.Office & PDFOpen source SyncthingSyncthing90,209Syncs folders directly between your own devices, with no cloud in between and encryption in transit.PC utilitiesOpen source OBS StudioOBS Studio79,148The world's most widely used open-source app for screen recording and live streaming.Video & audioOpen source AFFiNEAFFiNE74,313Open-source workspace that combines documents, a freeform whiteboard and databases, with local-first storage.Notes & teamworkOpen source VaultwardenVaultwarden70,410A lightweight rewrite of the Bitwarden server that you host for your family or company.PC utilitiesOpen source MotrixMotrix57,964Open-source download manager built on aria2, handling HTTP, FTP, torrents and magnet links.PC utilitiesOpen source Odoo CommunityOdoo Community55,631Open-source business suite: online store, point of sale, inventory, purchasing, CRM and basic accounting.Web & online businessOpen source Rocket.ChatRocket.Chat46,375Open-source team chat platform that also handles customer support.Notes & teamworkOpen source JanJan45,578Open-source AI chat app that runs models locally and can also use vendor APIs when you need a stronger model.AIOpen source LogseqLogseq45,513Outliner-style note app with daily journals and two-way links, stored as files on your device.Notes & teamworkOpen source ShareXShareX40,798An open-source screen capture and recording tool for Windows.Video & audioOpen source PostHogPostHog40,696Open-source product analytics suite: traffic, funnels, session replay, A/B tests and surveys.Web & online businessOpen source UmamiUmami39,982Lean open-source web analytics without cookies, easier to read than Google Analytics.Web & online businessOpen source MattermostMattermost39,557Open-source, self-hosted Slack alternative with channels, direct messages, threads, voice calls and bots.Notes & teamworkOpen source NextcloudNextcloud37,441Self-hosted open-source cloud storage and an alternative to Google Drive and Dropbox.PC utilitiesOpen source MedusaMedusa37,126Open-source commerce platform for developers (Node.js) with a separate admin and storefront.Web & online businessOpen source Jitsi MeetJitsi Meet30,210Open-source video meetings with no 40-minute cap: open a link and you're in.Notes & teamworkOpen source KeePassXCKeePassXC29,847Open-source password manager that keeps everything in one encrypted file on your computer, no cloud needed.PC utilitiesOpen source PlausiblePlausible29,793Privacy-friendly open-source web analytics, free to self-host as the Community Edition.Web & online businessOpen source ZulipZulip26,190Open-source team chat that organizes messages by topic, so conversations don't get buried like in Slack.Notes & teamworkOpen source ActivepiecesActivepieces25,423Open-source (MIT) automation tool as easy to use as Zapier, with many integrations and AI steps.Web & online businessOpen source listmonklistmonk24,194Very lightweight open-source newsletter tool that manages lists of up to millions of subscribers.Web & online businessOpen source Node-REDNode-RED23,823Open-source visual programming tool for IoT and factories that links devices to web services and databases.Web & online businessOpen source MatomoMatomo22,013Open-source Google Analytics alternative: pageviews, sources, goals and e-commerce.Web & online businessOpen source WekanWekan21,159Open-source, self-hosted Trello-style kanban board.Notes & teamworkOpen source AB Download ManagerAB Download Manager19,055A newer (2024) open-source download manager with a modern interface and multi-connection speed-up.PC utilitiesOpen source AudacityAudacity18,992An open-source audio recorder and editor for cutting, noise reduction, boosting voices and converting formats.Video & audioOpen source MailspringMailspring17,998Clean, open-source email client with fast search and a unified inbox for several accounts.Office & PDFOpen source Sumatra PDFSumatra PDF17,957Very lightweight open-source PDF reader for Windows.Office & PDFOpen source NanaZipNanaZip16,185A 7-Zip fork rebuilt for Windows 11 that fits into the new right-click menu.PC utilitiesOpen source SeafileSeafile15,435Self-hosted open-source file sync and sharing, known for being fast and light with large libraries.PC utilitiesOpen source BitwardenBitwarden14,177Open-source password manager whose free plan stores unlimited passwords on unlimited devices.PC utilitiesOpen source ElementElement13,640Open-source, end-to-end encrypted chat app built on the Matrix protocol.Notes & teamworkOpen source darktabledarktable13,408An open-source RAW photo manager and editor in the spirit of Lightroom.Design & photoOpen source MauticMautic10,951Open-source marketing automation: email, segments, lead scoring and nurture campaigns.Web & online businessOpen source KritaKritaAn open-source digital painting app built for illustration, comics and frame-by-frame animation.Design & photoOpen source LMMSLMMS10,624An open-source music production app in the style of FL Studio.Video & audioOpen source WooCommerceWooCommerce10,582Open-source e-commerce plugin for WordPress that powers a large share of self-built online stores.Web & online businessOpen source KanboardKanboard9,947Very lightweight open-source kanban board written in PHP, with WIP limits and charts.Notes & teamworkOpen source BigBlueButtonBigBlueButton9,271Open-source virtual classroom with whiteboard, breakout rooms, polls and recording.Notes & teamworkOpen source PrestaShopPrestaShop9,248French open-source e-commerce platform, strong at managing large, multilingual product catalogs.Web & online businessOpen source draw.iodraw.io9,244Open-source diagramming tool for flowcharts, org charts, network diagrams, BPMN and UML.Office & PDFOpen source AnytypeAnytype9,060Notion-style app for notes and personal knowledge, end-to-end encrypted.Notes & teamwork PeaZipPeaZip8,094Open-source archiver with a clean interface that opens more than 200 formats, including on Mac.PC utilitiesOpen source Standard NotesStandard Notes6,706Open-source, end-to-end encrypted notes app with free sync across unlimited devices.Notes & teamworkOpen source GIMPGIMPThe longest-running open-source image editor, able to handle most Photoshop work.Design & photoOpen source LibreCADLibreCAD6,566Open-source 2D drafting software with commands and layers close to AutoCAD, working with DXF files.CAD, 3D & statisticsOpen source RedmineRedmine6,073Long-established open-source project management and issue tracker, widely used by software companies.Notes & teamworkOpen source Linux MintLinux MintThe most Windows-like Linux distribution, with a browser, LibreOffice and media players preinstalled.PC utilitiesOpen source R + RStudioR + RStudioThe R statistics language plus the RStudio Desktop editor, both free.CAD, 3D & statisticsOpen source PDFsam BasicPDFsam Basic4,661Open-source desktop tool to merge, split, rotate and extract PDF pages.Office & PDFOpen source 7-Zip7-ZipThe best-known open-source archiver: extracts .rar, .zip, .7z, .iso and more, with AES-256 passwords.PC utilitiesOpen source RawTherapeeRawTherapee4,281An open-source RAW processor known for strong noise reduction, sharpening and color.Design & photoOpen source QCADQCAD1,925A compact, easy-to-use 2D CAD app.CAD, 3D & statisticsOpen source GanttProjectGanttProject1,119Lightweight open-source Gantt chart tool, enough for small and mid-sized project plans.Office & PDFOpen source JASPJASP1,017Point-and-click open-source statistics software similar to SPSS.CAD, 3D & statisticsOpen source TaigaTaiga859Open-source agile project management with Scrum, Kanban, user stories and sprints.Notes & teamworkOpen source Proton PassProton Pass816End-to-end encrypted password manager from Swiss company Proton.PC utilitiesOpen source jamovijamovi800Open-source spreadsheet-style statistics built on R, with a point-and-click interface close to SPSS.CAD, 3D & statisticsOpen source Paint.NETPaint.NETA lightweight Windows image editor, far more capable than Paint yet easier than GIMP.Design & photo digiKamdigiKamAn open-source manager for large photo collections, with tagging, face recognition and duplicate finding.Design & photoOpen source LunacyLunacyA desktop UI design app from Icons8 that opens Figma (.fig) and Sketch files and works offline.Design & photo Snipping Tool & Xbox Game BarSnipping Tool & Xbox Game BarTwo screen recorders already built into Windows, no install needed.Video & audio ocenaudioocenaudioA lightweight audio editor that previews effects in real time as you adjust them.Video & audio Waveform FreeWaveform FreeA free DAW from Tracktion with unlimited tracks and VST plugin support.Video & audio GarageBandGarageBandApple's free music app for Mac, iPhone and iPad.Video & audio Sweet Home 3DSweet Home 3DOpen-source interior design software: draw a floor plan, drag in furniture and see it in 3D instantly.CAD, 3D & statisticsOpen source GNU PSPPGNU PSPPOpen-source statistics software modeled on SPSS that also accepts familiar SPSS syntax.CAD, 3D & statisticsOpen source PDF24 CreatorPDF24 CreatorFree PDF toolbox from Germany: compress, merge, split, convert to Word, OCR, sign and password-protect.Office & PDF Dorabot PDF toolsDorabot PDF toolsFree PDF tools from Dorabot that run in your browser with no sign-up.Office & PDF ThunderbirdThunderbirdOpen-source email client from Mozilla, the makers of Firefox.Office & PDFOpen source eM ClienteM ClientModern Outlook-style email client with calendar, tasks, contacts and Exchange support.Office & PDF ProjectLibreProjectLibreOpen-source project planner similar to Microsoft Project, with Gantt charts and critical path.Office & PDFOpen source Google KeepGoogle KeepGoogle's free quick-notes app for lists, reminders, photos and voice notes that you can share with others.Notes & teamwork Google MeetGoogle MeetFree video meetings with a Google account, right in the browser with nothing to install.Notes & teamwork Microsoft Teams (free)Microsoft Teams (free)Free version of Teams for individuals and small groups, with chat and video meetings for up to 100 people.Notes & teamwork Windows 11 built-in extractorWindows 11 built-in extractorSince version 23H2, Windows 11 opens .rar, .7z and .tar.gz files right in File Explorer.PC utilities Free Download ManagerFree Download ManagerFree download accelerator with multi-connection downloads, pause and resume, and torrent support.PC utilities UltraViewerUltraViewerFree, lightweight remote desktop tool for Windows, commonly used for IT support and helping colleagues.PC utilities AnyDeskAnyDeskLight, fast remote desktop software that is free for personal use.PC utilities Chrome Remote DesktopChrome Remote DesktopGoogle's free remote desktop service, used through the Chrome browser.PC utilities Quick AssistQuick AssistBuilt into Windows 10 and 11, it lets someone view or control your PC using a 6-character code.PC utilities UbuntuUbuntuThe most popular Linux distribution for desktops and servers.PC utilitiesOpen source Zorin OSZorin OSLinux distribution made for people switching from Windows, with a Windows 11-style layout.PC utilitiesOpen source MakeMakeOnline automation service (formerly Integromat) where you build workflows on a visual diagram.Web & online business BrevoBrevoEmail marketing service (formerly Sendinblue) whose free plan sends 300 emails a day to unlimited contacts.Web & online business LM StudioLM StudioDesktop app for finding, downloading and chatting with open AI models on your own computer.AI LanguageToolLanguageTool15,236Open-source spelling and grammar checker for English and about 30 other languages.Office & PDFOpen source

FAQ

Is it legal to use these free apps?

Yes. Every app here is offered free of charge by its own developers or is open source. We only link to official download pages, never to cracked or pirated software.

What is the difference between open source and free?

Open source code is public: anyone can use it, including businesses, and the community can keep developing it. Freeware only costs nothing while the code stays closed. Freemium means a lasting free plan with paid tiers for more features.

Why not just use a cracked version?

Cracked software often ships with malware that steals passwords and bank logins or mines cryptocurrency, gets no security updates, and exposes businesses to licensing claims.

Where does the data come from?

Dorabot writes and checks every entry against the official website of each app. GitHub stars, last commit and the Health score are pulled automatically from GitHub; screenshots are of each official homepage. Spotted a mistake or want to suggest an app? Let us know.

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