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Published directory entries matching your search.
OpenPuff is a portable steganography and watermarking tool for hiding data in carrier files. It supports image, audio, video, Flash and Adobe formats, and uses multiple passwords, 16 cryptography algorithms and carrier chains. It requires no installation and runs in user mode.
OpenSCAD is free software for creating solid 3D CAD models, available for Linux/UNIX, Windows and Mac OS X. It is not an interactive modeller; instead it reads a script file describing an object and renders the model. It focuses on CAD aspects rather than artistic modelling and provides constructive solid geometry and extrusion of 2D outlines.
OpenSign is a free, open source document signing solution designed as an alternative to DocuSign. It is hosted as an open source project on GitHub, where users can contribute to its development.
Opensource Builders is a platform that helps users discover open source alternatives to popular proprietary software. It allows users to compare features and capabilities of different open source tools to identify the best options for their needs. The platform is an initiative of Openship, and its interface was adapted from a design by Maze Heart.
OpenStego is a free steganography tool written in pure Java. It provides data hiding, which hides data within a cover file such as an image, and beta watermarking, which embeds an invisible signature to detect unauthorized file copying. It supports password-based encryption with AES 128 and AES 256 and a plugin architecture.
OpenTunnel is a free tunneling service offering SSH, V2Ray, XRay, OpenVPN, WireGuard and other accounts. The site states that accounts are free, servers offer unlimited bandwidth and are online 24 hours, and no logs are used to monitor activity. It lists total server counts per protocol.
OpenXNG is a privacy-respecting, open metasearch engine powered by SearXNG version 2026.9.26+c52ce3835. The site provides access to the SearXNG source code, issue tracker, engine statistics, public instances, and contact information for instance maintainers.
optimize.photos is a tool for compressing high quality JPEG images. According to the site, it compresses them 35% more than traditional codecs and is powered by Google's Jpegli. It accepts files by drag and drop and states that images are never sent to its servers.
Optuna is an open source automatic hyperparameter optimization software framework designed for machine learning. It provides an imperative, define-by-run style user API with eager search spaces, algorithms that prune unpromising trials, and parallelization of searches over multiple threads or processes without modifying code. It is framework agnostic and can be installed with pip on Python 3.10 or newer.
OrangeFreeSounds is an audio creation tool for recording, editing, mixing, sound design, or music production.
Orca Slicer is a code repository or project page with source code, releases, documentation, or setup notes.
OrcaSlicer is a free, open-source 3D printing slicer for FDM 3D printers, created by SoftFever. It runs on Windows, macOS, and Linux and is licensed under AGPL-3.0. The slicer includes a built-in calibration suite and per-feature control over print settings, with tuned profiles for printers from Bambu Lab, Prusa, Creality, Voron, and others. Network printing supports Klipper, PrusaLink, and OctoPrint.
Orion Icon Library is an icon tool offering free SVG and PNG icons. The site lists 3,415 free SVG vector icons and describes an advanced interactive web app with line, solid, color and flat styles, plus a free plan and an unlimited plan.
Web-based content-aware collaborative design tool for generating AI ads that sell real products.
Outline is a tool for creating and running a personal VPN server. It consists of Outline Manager, a desktop application for setting up a server and sharing access keys, and Outline Client, an app for connecting to the server on mobile or desktop. Outline is open source and designed to be resistant to blocking, including DNS, content, and IP blocking.
Own-Free-Website.com is a service for creating a free homepage without coding skills. It offers a short ".page.tl" domain ending, up to 1 gigabyte of free web space, design templates, and features such as a guestbook, hit counter and survey function. Premium packages are available for extending a site.
Oxipng is a code repository or project page with source code, releases, documentation, or setup notes.
Pack 3D Models helps edit, convert, generate, search, or organize images and visual assets.
PaddlePaddle is an open-source parallel distributed deep learning framework developed from industrial practice, designed for high-performance single-machine and distributed training, as well as cross-platform deployment of deep learning and machine learning models.
Paint of Persia is a rotoscoping pixel-art tool for drawing on top of any window or wallpaper. It is made for pixel-art animation and sprites, with scale and transparency control and export of single frames or sprite sheets. It works with Windows 7+, and the macOS version is an alpha that may contain bugs.
PaintUp helps edit, convert, generate, search, or organize images and visual assets.
PaletteGenerator is a tool for generating color palettes for web UX/UI design. It offers 8 harmony methods, a live interface preview, palette refinement, and export to CSS variables, JSON and SVG.
PaletteMaker helps edit, convert, generate, search, or organize images and visual assets.
Palettum is a GitHub repository or organization with source code, releases, documentation, or project resources.
