Guide to free and open source privacy tools, safer apps, and alternatives to data-heavy services.
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Malfrat's OSINT Map is a web-based tree of open source intelligence tools and methods, presented as an alternative version of osintframework.com. Its legend marks items that require installation, need purchases, are web-based, are guides, lead to .onion sites, are browser extensions, or are offensive-OSINT that might alert the target.
Levelator is software for Windows, OS X and Linux that adjusts audio levels within a podcast or other audio file. It is described as not a compressor, normalizer or limiter although it contains all three. A WAV or AIFF file is dragged onto the application window to produce a new version.
4d2 dot org describes itself as a provider of free access to communication and collaboration services in a mixed Linux/BSD environment since 2001, focusing on technical transparency, user privacy and free speech. It states that its Lemmy, Mastodon and PeerTube services are being discontinued on December 16, 2026, and that registration for Matrix is temporarily closed.
AAT (Another Activity Tracker) is a GPS tracker and map viewer for Android. It stores tracks in GPX format, switches between cockpit and map views, and provides offline and tile-based maps with altitude information and hill shading. It includes a simple GPX editor for route planning and offline POI support.
An alternative Discord client with voice support made with C++ and GTK 3
Accessibility Cheatsheet is a page by Moritz Glantz offering practical approaches to Universal Design for making websites and webapps accessible to everyone. It covers semantic HTML, text alternatives for non-text content, form labels, visible focus indicators, sufficient contrast, descriptive links, captions and enabling pinch and zoom.
AceView provides a comprehensive annotation of human and nematode genes, reconstructed by co-alignment and clustering of publicly available mRNAs and ESTs on the genome sequence. Its stated goals include a reliable, up-to-date resource on genes, their functions, alternative variants, expression, regulation and interactions, intended to stimulate further validating experiments at the bench.
Add Platforms is a social media tool for privacy frontends, link previews, analytics, or platform utilities.
Adobe Alternatives is a GitHub repository that maintains a curated list of alternative software for Adobe products. The list is organized by use case, including categories such as Photoshop alternatives, photography tools, painting software and pixel art applications.
Aeromatic is an AeroPress recipe app for iOS and Android. It lists 60+ curated recipes, step-by-step instructions, a built-in stopwatch, video walkthroughs and a bean tracker. Users can add notes and create their own recipes.
AgenticSeek is a voice-enabled AI assistant presented as a local alternative to Manus AI. It autonomously browses the web, writes code and plans tasks while running entirely on the user's hardware without cloud dependency. It selects agents for tasks and is described as tailored for local reasoning models. The voice and speech-to-text functionality is noted as in progress.
AI-Chat-to-Visual is a Hugging Face Space developed by Agents-MCP-Hackathon. It allows users to upload datasets and generate visualizations by describing desired plots via chat, using the Altair library. The space is currently inactive and sleeping due to inactivity.
Open-source alternative to Opus Clip, Vidyo.ai, Klap & SubMagic. Turn long-form YouTube videos into viral 9:16 shorts using LLM highlight detection, Whisper transcription, and auto vertical cropping — free, no watermarks, no per-clip credits.
Aidoku is an open source manga reader for iOS, iPadOS, and macOS. It supports importing local files, connecting to a media server, and browsing content from external sources, with global and source-specific settings. Installation is available through TestFlight, an AltStore source, or sideloading. External sources are unofficial and not affiliated with Aidoku.
AirVPN helps find, check, or use proxy services for alternate web access and privacy testing.
Alan's Gigantic Repo is a service that enables installation of iOS applications outside the App Store without requiring a jailbreak or a computer. Users obtain a certificate for a one-time fee of £6.75. The repository hosts a large collection of apps, including Swiftgram, Boostcamp, Peek Weather, Reddit, and many others. It provides multiple JSON feeds compatible with AltStore, SideStore, FlareStore, Feather, and KSign.
Alt Address is a free disposable email provider that accepts mail to addresses on its domains and keeps messages for three days. No registration or password is needed to check a message. A free account provides four password-protected mailboxes; more mailboxes can be purchased with cryptocurrency. Messages to registered addresses are kept until deletion or can be set to auto-delete.
Open-source project that applies AI to data analysis, extraction, visualization, or business intelligence.
Search construction engineering and architecture data collections and supporting datasets from CAN.
A GitHub repository compiling tools, ideas, prompt engineering resources, Colabs, models and helpers for prompt designers working with AI art and image synthesis. The list covers Dalle2, MidJourney, StableDiffusion and open source tools, and includes sections on commercial and free hosted tools, prompt engineering, post-processing and communities.
AltSnap is a fork of Stefan Sundin's AltDrag for Windows. It lets users move and resize windows by holding the Alt key and clicking anywhere on the window. This version injects nothing into other applications and does not require separate 32-bit and 64-bit builds. It adds options such as transparent window dragging, a Maximize action, pause options and more blacklists.
AltTextLab is an AI-powered alt text generator for images. It produces descriptions in 130+ languages and integrates with WordPress, Shopify, Webflow, and 20+ tools, also offering a web snippet and REST API. It provides 25 free credits monthly with no credit card required.
Universal x86 Tuning Utility is an open-source tuning tool for x86 laptops and computers that offers control over the processor and GPUs. It is described as a lightweight alternative to Ryzen Master and XTU and is noted to work best on Zen-based CPUs or APUs and Intel CPUs from 4th gen and newer. The project is marked as a work in progress.