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A free online OCR service that converts scanned documents and images into editable text. It requires no registration or software installation; users upload files and receive text. It is based on the Tesseract OCR engine and supports 122 recognition languages and fonts. After processing, text can be downloaded, edited in Google Docs or copied.
Nohat is a site described by its operator as intended to create something useful for content creators. Its AI Editor page lists tools including background removal, upscaling, relighting and Photosoft. The operator states that most tools are free and paid services are very cheap.
nomacs is a free, open source image viewer that supports multiple platforms and common image formats, including RAW and PSD. It also offers image editing such as cropping, resizing, rotating and color adjustments, and lets the same action be performed on multiple viewers for comparing images.
OCRTool.net is a free online OCR tool that extracts text from images, PDFs and screenshots using Mistral AI's OCR model. It supports JPG, PNG, WEBP, BMP, GIF and PDF files up to 20 MB per file, with multi-language recognition and layout-aware conversion. No signup is required, no watermarks are added, and files and extracted text are not stored.
OnlineOCR is an online optical character recognition service that converts images and PDF files to text. It supports formats such as JPG, PNG, GIF, JFIF, HEIC and PDF, and offers simple OCR as free raw text recognition alongside a premium OCR mode for tables, lists and headings. The site lists more than 100 languages for recognition.
OpenLearning (Open eLearning) is a free, open source desktop e-learning authoring tool. It allows users to create engaging multimedia courses and educational games without coding. As a standalone installed application, it offers responsive performance that does not rely on an internet connection, and can be used to build and share course content at any time.
OpenMoji is an open source emoji project from students and professors at HfG Schwäbisch Gmünd and external contributors. It offers over four thousand emojis in colored and outlined styles, supports the Unicode Emoji standard and Fitzpatrick skin tones, and is free to use under the CC BY-SA 4.0 license.
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.
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.
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.
PatternPad creates graphical patterns from adjustable parameters, offering millions of variations and hand-picked colour palettes. Designs can be exported in PNG, JPG or SVG format for use in presentations, social media or branding. The site states that PatternPad is free of charge and that patterns may be used commercially with credit and a link to PatternPad, though the artwork itself may not be resold.
Personas by Draftbit is an avatar generator that lets users mix and match skin, hair, facial hair, body, eyes, mouth, nose and accessories with customizable colors. Avatars can be downloaded as PNG or shared as a URL, and every avatar is a link composed with query parameters. It is free and open source under the MIT license.
Photofeeler is a photo testing tool in which users upload photos and receive scores on key traits from real people. It provides feedback intended to help choose profile pictures for business, social, and dating contexts. Users can vote on photos for a free test or purchase credits for faster results.
PhyloPic is an open database of free silhouette images of animals, plants, and other life forms. The silhouettes are available for reuse under Creative Commons licenses and can be downloaded for educational materials, research articles, and other projects. The site also offers API access and accepts uploaded silhouettes.
Picturama is a digital image organizer. It scans local files and browses photos by date, with detail views, EXIF information, tags, favorites, and rotate, tilt and crop tools. The original images are not modified. It supports JPG, PNG, TIF, WebP and HEIC/HEIF, and raw formats only on Mac and Linux. It is free and open source under the MIT license.
Pie Chart Maker is a free online tool for creating pie charts. Users enter labels and values, and can configure options such as background color, legend position, pie hole for a doughnut chart, 3D display and slice text. Charts can be downloaded as jpg, png or svg files.
Pingo is an experimental lossless and lossy image optimizer for PNG, JPEG, WebP and APNG files, designed to transform image data for the Web. It runs from the command line with optimization levels and quality settings. Its license permits free use for exclusive private usage only, and does not permit repackaging, redistributing, downloading, reselling or reusing it through other services, even for non-commercial purposes.
Pinshape is a 3D marketplace for designers where creators share STL files for 3D printing. The site lists trending and featured items across categories such as Gadgets and Jewelry + Fashion, including free models, and highlights a featured designer with a selection of their items.
Pitch is a collaborative presentation platform for teams to create, share and deliver presentations. Slides can be created from a prompt, and the Free plan offers 100 AI credits, unlimited presentations, custom templates, basic sharing links and two external guests.
PlusPNG is a library of transparent PNG images, logos and clipart. The site states that its collection contains more than 180,000 free transparent PNG image files. Images are intended for non-profit purposes only, and the site mentions that PlusPNG.com launched in August, 2017.
PNGHut is a database of free to download transparent PNG images, with user-created and uploaded content. Uploading is available to members after an account period; images are available for personal and editorial use, with a premium account required for commercial rights.
PNGIMG is a catalog of free PNG images with transparent backgrounds, offered for non-commercial use under an Attribution-NonCommercial 4.0 International license. Images are sorted by category and can be downloaded without registration. The site states it is a non-commercial project run by a small team of designers.
poll.ly (branded as pollly) is a free online tool for polling and brainstorming that does not require user registration. It is designed to help users gather ideas and opinions in real time, and is described as fool-proof.
Xoyondo's polling apps create opinion polls and anonymous polls. Opinion polls show which participants voted for which option, while anonymous polls keep voting confidential. The page states the apps are simple and free, with no registration required.
