mCaptcha is a privacy-respecting CAPTCHA system that uses proof-of-work and adaptive difficulty to protect websites without image puzzles.
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Tag: privacy
Cap – lightweight privacy-focused CAPTCHA
Cap is a lightweight, self-hosted CAPTCHA alternative using proof-of-work and browser instrumentation.
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SDNS – recursive DNS resolver with DNSSEC validation
SDNS is a recursive DNS resolver written in Go with DNSSEC validation, encrypted DNS transports, policy controls and operational monitoring.
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ALTCHA – privacy-first CAPTCHA alternative
ALTCHA is a self-hosted, privacy-focused CAPTCHA alternative using proof-of-work to protect websites from bots, spam and abuse.
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Open Source Alternatives to Proprietary Software
Discover free and open source alternatives to proprietary software and services from Microsoft, Google, Apple, Adobe and many others.
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Equicord – Discord client mod with over 300 plugins
Equicord is a Vencord fork providing more than 300 plugins, custom themes, browser builds, privacy features and cross-platform installers.
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Vencord – extensible Discord client modification
Vencord enhances Discord with more than 100 plugins, custom themes, browser support, settings synchronisation and tracker blocking.
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WebCord – privacy-focused Discord web client
WebCord is a privacy-focused Electron client for Discord with permission controls, tracker blocking, ARM support and Wayland audio sharing.
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moodiary – multimedia personal diary and journal
moodiary supports rich-text entries, multimedia memories, full-text search, private backups, themes and optional synchronisation services.
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Peergos – secure file storage, social network and application protocol
Peergos offers private self-hosted cloud storage with client-side encryption, protected metadata, secure sharing and file synchronisation.
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Firefox – feature-rich web browser
Firefox is a privacy-focused web browser with tab groups, vertical tabs, tracking protection, built-in PDF tools and extensions.
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CryptPad – encrypted collaborative office suite
CryptPad is an encrypted collaborative office suite with documents, spreadsheets, presentations, forms and privacy-focused sharing.
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Mailpile – privacy-focused email client with PGP encryption
Mailpile is a privacy-focused email client with PGP encryption, local mail indexing and tagging, but development has stopped.
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Privoxy – non-caching web proxy
Privoxy is a privacy-enhancing non-caching web proxy with ad blocking, HTTPS inspection, header manipulation and flexible filtering.
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Sweeper – clean desktop histories and caches
Sweeper removes KDE desktop histories, clipboard contents, thumbnail caches and supported web browsing traces through a simple interface.
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Essential System Tools: BleachBit – open source system cleaning software
This is the sixth in our series of articles highlighting essential system tools. These are small utilities, useful for system administrators as well as regular users of Linux based systems. The series examines both graphical and text based open source utilities. We’re recommending a graphical utility that is excellent at giving your system a deep clean. It’s called BleachBit.
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