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Code Web Chat

codeweb.chat

Code Web Chat (CWC) is a free, open-source AI coding tool that integrates with chatbots and APIs. It is compatible with the VS Code family of editors including Cursor, VSCodium, and Antigravity. It supports chatbots such as ChatGPT, Gemini, Claude, Grok and DeepSeek, and APIs including Gemini API, OpenRouter and local Ollama. Features include code completions, checkpoints for state restoration, and a browser extension for autofill available for Chrome and Firefox. It is released under the GPL-3.0 license.

CotEditor

coteditor.com

CotEditor is an open-source plain-text editor made for macOS. It offers syntax highlighting for over 60 pre-installed languages, powerful find and replace using the ICU regular expression engine, and auto backup of documents while editing. Settings are accessible via a standard window without complex configuration files.

Cuttr

cuttr.in

A browser-based video editor built around AI transcription, allowing edits by highlighting and deleting transcript text instead of working on a timeline. It offers Docu and Preview modes and one-click subtitle generation with automatic syncing. Available for free without signup, and videos are not uploaded.

Exercism

exercism.org

Exercism is a free, community-funded, not-for-profit platform for learning and practicing programming. It offers coding exercises across 84 language tracks, an in-browser editor, and automated analysis of solutions, alongside free human mentoring. Exercises can also be downloaded and submitted from the terminal with a CLI-first tool.

FlexClip

flexclip.com

FlexClip is an AI-powered online video maker and editor. It provides editable templates, editing tools and AI features such as an AI video generator, text to speech and automatic subtitles.

Ghostwriter

ghostwriter.kde.org

ghostwriter is a free and open-source Markdown editor for Windows, Linux and macOS. It offers a distraction-free writing mode, light and dark themes, live HTML preview, and a sidebar outline for navigation. Focus Mode highlights the current text, and a Hemingway Mode disables backspace and delete keys. It can auto-detect Pandoc, MultiMarkdown or cmark processors for live preview and export.

HyperWrite

hyperwriteai.com

HyperWrite is an AI writing assistant with autocomplete, web search, and citations, offered as a browser-based document editor and Chrome extension. It provides hundreds of AI tools for content generation, research, speeches, and rewriting, plus custom AI tools. Paid plans include Premium at $19.99/month and Ultra at $44.99/month, while a free starter account offers limited access.

kdiff3

apps.kde.org

KDiff3 is a file and folder comparison and merge tool. It compares and merges two or three text input files or folders, shows differences line by line and character by character, and provides an automatic merge facility and an editor for solving merge conflicts. It supports Unicode, UTF-8 and other file encodings and prints differences.

LDtk

ldtk.io

LDtk is an open-source 2D level editor for indie developers, focused on user-friendliness. It organizes levels into worlds, supports customizable entities, auto-rendering rules and Aseprite files, and exports PNG images with JSON data. It targets platformer and top-down perspectives and can be used free of charge without limitation.

Lite XL

lite-xl.com

Lite XL is a lightweight text and code editor written in C and Lua, adapted from lite. It is available for Linux, Windows and macOS, comes in a bundle under 5MB, and is scriptable with Lua. It supports multiline editing, autocomplete and pane splitting by default, and can be extended with plugins.

Manus

manus.im

Manus is described as an action engine that executes tasks and automates workflows. Its features page lists building web and mobile apps, creating videos, slides and designs, research, and automations. A video feature uses Seedance 2.5 to generate shots, with editable tracks in a Video Editor.

MarkLiveEdit

markdownlivepreview.dev

Markdown Editor Online is a browser-based tool for writing Markdown with a real-time preview pane. It supports LaTeX math, Mermaid diagrams, GitHub-flavored Markdown, tables and code highlighting, and allows exporting to PDF, Word or HTML without login. Drafts autosave in the browser, and existing .md files can be uploaded for editing.

Markor

fossdroid.com

Markor is a lightweight Android text editor for notes and to-do lists, supporting Markdown and todo.txt. It works completely offline, offers syntax highlighting, converts and shares documents as HTML and PDF, and includes an auto-save with undo and redo options. Notes are stored as plaintext files in a notebook folder, and the app has no ads or unnecessary permissions.

Math Notepad

mathnotepad.com

Math Notepad is a web-based mathematical editor for performing calculations and plotting graphs. It supports real and complex numbers, matrices, and units. The tool automatically updates dependent calculations when expressions are changed, and is designed for engineers, students, and pupils. It is powered by the math.js library and is the successor of SpeQ Mathematics.

MindForger

mindforger.com

MindForger is a desktop application for Linux presented as a thinking notebook and Markdown editor for personal knowledge management. It stores notes in Markdown, computes associations between notes locally, and automatically turns notebook and note names in text into links in the preview. It is also available for other platforms through packages listed in its installation documentation.

MonsterWriter

monsterwriter.com

MonsterWriter is an academic writing tool for students and researchers. It offers two document types: a LaTeX Workspace with a full code editor, syntax highlighting and real-time PDF preview, and a distraction-free Documents mode without LaTeX. It handles formatting, citations and numbering automatically, with citation from DOI, ISBN or URL and export in styles including APA and IEEE.

onlinenotepad

onlinenotepad.org

Online Notepad is a free browser-based plain text editor for creating and editing multiple plain-text files without registration or login. It autosaves drafts every second using browser local storage, restoring documents after a tab is closed or the browser crashes, and supports saving files to a computer. Features include undo, find and replace, spellcheck, word count and print.

Pitivi

pitivi.org

Pitivi is a free, open-source video editor designed for Linux. The project is built on the belief that everyone should have access to owned, improvable tools for filmmaking and personal expression. It features an intuitive user interface, a clean codebase, and an active community. Past software releases have introduced functionality including auto alignment, precise audio waveforms, object tracking, beat detection, enhanced clip properties, and media library clip tagging.

puddletag is an audio tag editor primarily created for GNU/Linux, similar to the Windows program Mp3tag. It uses a spreadsheet-like layout so tags can be edited by hand and visible. It supports extracting tag information from filenames, renaming files based on tags with patterns, and basic tag editing. Functions include text replacement, trimming and case conversion, and Actions automate repetitive tasks. Web lookups using Amazon, Discogs, FreeDB and MusicBrainz are supported.

Readwok

readwok.com

Readwok is a browser-based reader for online text and books. Users upload files such as epub, fb2 or txt and read them paragraph by paragraph, with modes including single paragraph and autoplay. An inline editor allows merging, adding or deleting text, and data syncs across devices.

Resize Pixel

resizepixel.com

ResizePixel is a free online image editor that runs in the browser without installing software. It offers tools to crop, resize, flip, rotate, convert, compress, mirror, pixelate images, and convert images to black and white. The site was launched in 2018 by software engineers in Lviv, Ukraine, and files are automatically deleted from servers within one hour.

SocialStudio

socialstudio.ai

SocialStudio is an AI-powered tool that automates Instagram content creation, design, and scheduling. It uses an AI assistant to generate platform-specific content, offers a customizable editor for brand-aligned posts, and allows direct scheduling of content to Instagram.

Sprite Fusion

spritefusion.com

Sprite Fusion is an independent software company making tools for game development. Its tilemap editor is a free, web-based level design tool for crafting 2D tilemaps in the browser using any tileset, with auto-tiling, collisions and one-click exports to game engines. The company also offers a pixel art generator, a Pixel Snapper tool and an API.

Sublime Text

sublimetext.com

Sublime Text is a text editor for code, markup and prose, available on Mac, Windows and Linux. Version 4 adds GPU rendering, Apple Silicon and Linux ARM64 support, Tab Multi-Select, context-aware auto complete, and TypeScript, JSX and TSX support. Linux package repositories are provided for apt, pacman, yum, dnf and zypper.