LibreOffice is a free and open-source office suite that is compatible with other major office suites, and is available on all operating systems. It is an independently-developed version of the OpenOffice.org suite.
The office suite includes:
LibreOffice - Writer, a word processor with similar functionality and file support to Microsoft Word . It has extensive WYSIWYG word processing capabilities, but can also be used as a basic text editor.
LibreOffice - Calc , a spreadsheet program, similar to Microsoft Office Excel . It has a number of unique features, including a system which automatically defines series of graphs, based on information available to the user.
LibreOffice - Draw , a vector graphics editor and diagramming tool similar to Microsoft Office Visio . It provides connectors between shapes, which are available in a range of line styles and facilitate building drawings such as flowcharts. It also includes features similar to desktop publishing software such as Scribus and Microsoft Office Publisher .
Telegram is a messaging app created by former VK creators with a focus on speed and security. It’s superfast, simple and free. It is like SMS, but more powerful.
You can send messages, photos and videos to people who are in your phone contacts (and have Telegram). You can also create groups for up to 200000 people or channels for unlimited subscribers.
Your chats are not encrypted by default, which enables other people to see what you are writing. You can enable a "Secret Chat" to enable end-to-end encryption.
Telegram offers a Premium plan too: by subscribing to Telegram Premium, users unlock doubled limits, 4 GB file uploads, faster downloads, exclusive stickers and reactions, improved chat management – and a whole lot more. At the same time, all existing features that users have come to expect and rely on for nearly a decade remain free. Moreover, non-premium users will be able to enjoy some of Premium's benefits: for example, download the extra-large documents and view stickers sent by premium users, as well as tap to increase counters on premium reactions that were already added to a message. There are different prices for the Premium subscription based on your country, also if you buy it via the @premiumbot you don't have to pay the app store fees.
Telegram's security model has received notable criticism by cryptography experts. They criticized the general security model of permanently storing all contacts, messages and media together with their decryption keys on its servers by default and by not enabling end-to-end encryption for messages by default.
Telegram's client-side code is open-source software, whereas its server-side code is closed-source and proprietary. The service also provides public APIs with which developers can access the same functionality as Telegram's official apps to build their own messaging applications.
Telegram also provides a bot API for programmers to create different kinds of Telegram bots. Bots are simply Telegram accounts operated by software – not people – and they'll often have AI features. They can do anything – teach, play, search, broadcast, remind, connect, integrate with other services, or even pass commands to the Internet of Things.
A free and open source web browser descended from the Mozilla Application Suite. Firefox is highly extensible, with thousands of third-party add-ons available.
Firefox version 60+ (Quantum) is presently faster than Google Chrome and use less memory than Chrome. Compare to previous versions of Firefox, the Quantum version is twice as fast, promote parallelism, and has more intuitive user interface.
GIMP is a freely distributed program for such tasks as photo retouching, image composition and image authoring. It can be used as a simple paint program, an expert quality photo retouching program, an online batch processing system, a mass production image renderer, an image format converter, and more.
7-Zip is a file archiver with a high compression ratio.
The main features of 7-Zip
High compression ratio in 7z format with LZMA and LZMA2 compression Supported formats: Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM Unpacking only: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z. For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10 % better than the ratio provided by PKZip and WinZip Strong AES-256 encryption in 7z and ZIP formats Self-extracting capability for 7z format Integration with Windows Shell Powerful File Manager Powerful command line version Plugin for FAR Manager Localizations for 87 languages
7-Zip works in Windows 10 / 8 / 7 / Vista / XP / 2012 / 2008 / 2003 / 2000 / NT. There is a port of the command line version to Linux/Unix and macOS.
Shotcut is a free, open source, cross-platform, non-linear video editor.
Supports hundreds of audio and video formats and codecs thanks to FFmpeg. No import required which means native editing, plus multi-format timelines, resolutions and frame-rates within a project. Frame accurate seeking supported for many video formats.
Blackmagic Design SDI and HDMI for input and preview monitoring. Screen, webcam and audio capture. Network stream playback. Supports resolutions up to 4k and capture from SDI, HDMI, webcam, JACK & Pulse audio, IP stream, X11 screen and Windows DirectShow devices.
Multiple dockable and undockable panels, including detailed media properties, recent files with search, playlist with thumbnail view, filter panel, history view, encoding panel, jobs queue, and melted server and playlist. Also supports drag-n-drop of assets from file manager.