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Pixel Snapper is a free, open-source tool for cleaning up AI-generated pixel art. It fixes blur, inconsistent pixels and off-grid pixels while preserving details such as dithering and outlines, and it can apply a pixel art color palette to the image. A paid desktop edition adds batch processing.
PRISM Climate Data is a project of the PRISM Group at Oregon State University that gathers weather observations, applies quality control and mapping methods, and develops spatial datasets showing short- and long-term weather patterns. Datasets cover 1895 to the present and are offered free of charge, with bulk downloads and single grid cell time series.
Puzzle Loop is an online Slitherlink puzzle game, also known as Fences or Loop the Loop. Players draw lines between dots to form a single loop without crossings or branches, and numbers indicate how many lines surround them. The site offers puzzles in several grid sizes and difficulty levels, including daily, weekly and monthly specials.
REXPaint is an ASCII art editor from Grid Sage Games for creating ANSI block and line art, roguelike mockups and maps, and UI layouts. It offers separate editing of characters, foreground, and background colors, shape and text tools, layers, palette manipulation, a true-color picker, custom fonts and tilesets, and export to PNG and other formats. It is Windows-only and was originally an in-house development tool.
Samay is a free and open source group scheduling tool. It helps find a time which works for everyone without the back-and-forth texts and emails. The page shows a scheduling grid and offers group poll and one-on-one poll options.
Somoclu is a massively parallel implementation of self-organizing maps, using multicore CPUs, MPI for cluster workload distribution, and CUDA acceleration. It supports OpenMP, MPI, and CUDA, runs on Linux, macOS, and Windows, and offers planar and toroid maps, rectangular and hexagonal grids, and Gaussian and bubble neighborhood functions. Both dense and sparse input data are supported, with interfaces for Python, R, Julia, and MATLAB.
SOMPY is a Python library for self-organizing maps structured similarly to somtoolbox in Matlab. It offers only batch training, PCA or RandomPCA initialization, component plane visualization, hitmap and U-Matrix visualization, and 1-d or 2-d SOM with rectangular, planar grid. It supports function approximation and predictions, mostly using Sklearn.
Spotlistr converts links, tracklists, files and text into playlists, with a review step before saving to Spotify. It also offers tools for playlist covers, listening stats, now-playing images, Last.fm grids and scrobble management. It uses prepaid credits for songs added to playlists.
Spritesheet Generator is a free browser-based tool for building sprite sheets for game development. Users upload sprite images or a JSON atlas, arrange frames in a grid, preview animations at adjustable frame rates, and export as PNG, JSON, ZIP or GIF. It includes a pixel editor, recolor controls and an atlas packer. The site states images stay on the user's machine and the tool works offline.
The University of North Carolina at Charlotte is a public R1 research university in Charlotte, North Carolina. It offers more than 170 undergraduate majors, over 150 graduate programs, online educational options, and financial aid and scholarships. The university has a student body of over 32,000 and supports more than 400 student organizations. It leads a Carolinas partnership awarded the NSF Regional Innovation Engines designation to modernize the U.S. electric grid, and hosts the nation’s first university School of Energy.
Whitespark offers software and services for local SEO. Its tools cover Google Business Profile management, local ranking grids, rank tracking, citation finding and review generation. Services include SEO and citation building for small businesses, agencies and multi-location enterprises.
YouTube Search Fixer is a free, open-source browser extension that removes Shorts, Mixes, playlists, suggestions and clickbait text from YouTube search results. It also offers search and layout tools, including Power Search and a grid view. The developers state it collects no telemetry and requires no account.
