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Top 11 C++ Offline Projects
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DeepSpeech
Discontinued DeepSpeech is an open source embedded (offline, on-device) speech-to-text engine which can run in real time on devices ranging from a Raspberry Pi 4 to high power GPU servers.
Project mention: From Voice to Text: Exploring Speech-to-Text Tools and APIs for Developers | dev.to | 2025-05-19Setup: Install deepspeech with pip install deepspeech. Download pre-trained models from DeepSpeech Releases. Use a 16kHz mono WAV file.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Project mention: Self-Host and Tech Independence: The Joy of Building Your Own | news.ycombinator.com | 2025-06-07
For offline documentation, I use these in order of preference:
• Info¹ documentation, which I read directly in Emacs. (If you have ever used the terminal-based standalone “info” program, please try to forget all about it. Use Emacs to read Info documentation, and preferably use a graphical Emacs instead of a terminal-based one; Info documentation occasionally has images.)
• Gnome Devhelp².
• Zeal³
• RFC archive⁴ dumps provided by the Debian “doc-rfc“ package⁵.
1. https://www.gnu.org/software/emacs/manual/html_node/info/
2. https://wiki.gnome.org/Apps/Devhelp
3. https://zealdocs.org/
4. https://www.rfc-editor.org/
5. https://tracker.debian.org/pkg/doc-rfc
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Real-Time Translation - RTranslator
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dsnote
Speech Note Linux app. Note taking, reading and translating with offline Speech to Text, Text to Speech and Machine translation.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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jyut-dict
A free, open-source, offline Cantonese Dictionary for Windows, Mac, and Linux. Qt, SQLite. C++ and Python.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
C++ Offline discussion
C++ Offline related posts
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Wikipedia: Database Download
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Zeal is an offline documentation browser for software developers
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Seeking help
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Looking for a simple Cantonese dictionary for spoken Cantonese
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Recent Wiktionary ZIM files don't show a search bar
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A new version of Wikipedia_en_all_maxi is available! (link below)
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How to serve content on website over open WiFi for neighborhood ?
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A note from our sponsor - SaaSHub
www.saashub.com | 21 Jun 2025
Index
What are some of the best open-source Offline projects in C++? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | DeepSpeech | 26,453 |
| 2 | zeal | 12,171 |
| 3 | RTranslator | 8,493 |
| 4 | Pyto | 953 |
| 5 | kiwix-desktop | 920 |
| 6 | dsnote | 933 |
| 7 | kiwix-tools | 584 |
| 8 | libzim | 190 |
| 9 | osmscout-server | 172 |
| 10 | jyut-dict | 141 |
| 11 | sarch | 1 |
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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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