A collection of OSINT tools for researching Instagram, Reddit and Snapchat. It includes profile and keyword searches, account analytics, comparison of users, account ID and geolocation tools for Instagram, post and comment searches for Reddit, and username and location video searches for Snapchat. Some tools require the subject's account name.
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The Institute of Museum and Library Services provides a data page with tools and reports for exploring library and museum data. It includes Library Search & Compare for individual library data and ten-year trends, an indicators workbook on economic status and broadband, a state funding report compilation, a state comparison tool, public library benchmarking tables, and administrative discretionary grant data.
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.
KeebFinder is a comparison site for mechanical keyboards and keycap sets with filter criteria for matching requirements. It scores keyboards from 0 to 100 using weighted build quality, customizability, productivity and performance, plus a popularity bonus of up to 8 points. Switches are scored separately from 0 to 100 by materials and finish within similar-feel groups.
Kingston Data is a site from the Royal Borough of Kingston upon Thames Council that gathers local data and information for insight into the borough and comparisons locally and nationally. It offers a ward profile search by postcode or ward name or map click, plus themes including population, children and young people, health and social care, housing, crime and community safety, deprivation, economy and employment, and environment.
The KNMI Climate Explorer is a web-based scientific analysis tool from the Royal Netherlands Meteorological Institute. It offers access to over 10 TB of climate data and dozens of analysis tools for exploring and visualizing climate data in the browser, including time series, anomaly calculations, event comparisons, and trend analysis with significance testing. Results can be visualized and downloaded.
LLM pricing calculator is a web page for estimating model costs per million tokens. It takes input, cached input and output token counts and reports cost per million input tokens, per million cached input tokens and per million output tokens. It notes that direct token-based price comparisons may not be entirely accurate because different models use different tokenizers.
LM Council presents source-dated benchmark snapshots for AI models. It covers GPT, Claude, Gemini and other frontier models across benchmarks including Humanity's Last Exam, FrontierMath, GPQA and SWE-bench, with a comparison tool selecting two models. Each snapshot links its source and checked date, and evaluation settings and metrics vary.
LO4D.com offers free software downloads for Windows PCs, with reviews, comparisons, alternatives and security reports including antivirus tests. It separates freeware from non-free titles by category and states that files are tested against malware and other threats.
MapFight is a site for comparing the size of countries, regions and cities. It presents area comparisons, such as how many times larger one place is than another, and discusses map projection distortion.
MassIVE is a community resource from the NIH-funded Center for Computational Mass Spectrometry for free global exchange of mass spectrometry data. It allows browsing and downloading public datasets, searching dataset metadata, submitting data, credentials for reviewer access and ProteomeXchange accessions, searching submitted identifications and reanalyses, online reanalysis workflows and comparison of identification results.
MastoGizmos is a collection of one-page JavaScript apps for searching and exploring Mastodon content. Tools include instance trend viewing, multi-instance hashtag search, verified user search, user directories, related hashtag discovery, RSS feed generation for hashtags, and local versus federated post comparison.
Meld is a visual diff and merge tool for comparing files, directories, and version-controlled projects. It provides two- and three-way comparison, three-way merge assistance with conflict handling, and support for Git, Mercurial, Bazaar, and Subversion. It is packaged for Linux/Unix distributions and Flathub, with a Windows installer available; macOS support is not yet official.
Meld is a visual diff and merge tool that helps compare files, directories, and version controlled projects. It provides two- and three-way comparison of files and directories, assists with three-way merges and conflict handling, and supports version control systems including Git, Mercurial, Bazaar and Subversion. It is packaged for most Linux/Unix distributions and available on Flathub; macOS is not yet supported.
MetaReview is a free, open-source online meta-analysis tool that combines PubMed literature search, AI screening and data extraction, effect-size calculation for OR/RR/HR/MD/SMD, forest and funnel plots, subgroup and sensitivity analysis, PRISMA flow diagrams and report export. It runs in the browser without R, Stata or RevMan. A comparison page states the tool is free.
MidJourney Styles and Keywords on GitHub is a reference repository containing styles and keywords for use with MidJourney AI, alongside pages showing resolution comparison, image weights, and additional related resources.
MouseCTRL is a database for comparing gaming mousepads by speed, texture, firmness, size and price. It also publishes a compatibility index of independently tested combinations of gaming arm sleeves and mousepads. The site offers comparison tools, macro photography of surfaces, and brand guides, and states it requires no signup.
Toolboxd is a workbench of tools for Letterboxd users, including recommendations, watchlist pickers, a random movie picker, similar users and films, and taste compatibility comparisons, with no login required. A separate atlas places ten thousand films into named regions.
Municipal Money is a web-based tool from South Africa's National Treasury that presents municipal financial data to the public. It draws on raw data from the Municipal Money API site and uses interactive maps, charts, graphs and short videos to show financial performance and allow comparisons between municipalities. Content is presented for general audiences without a financial background.
NanoReview is a platform for comparing laptops, smartphones, CPUs, and other tech devices. It collects specifications and test results in one place and provides comparisons and rankings of processors, smartphones, laptops, GPUs, and tablets. The site also accepts crowdsourced benchmark results and user comments.
NFT Evening is a news and data site covering Bitcoin, Ethereum, NFTs, crypto art, blockchain games, AI and the metaverse. Its articles include exchange reviews and comparisons such as a BingX review and a BingX versus MEXC comparison.
Odysseus is a self-hosted AI workspace for running language models on one's own hardware. It offers chat, autonomous agents, tools and MCP connections, model serving, an email assistant, deep research, model comparison and persistent memory. The project is described as local-first and privacy-first, with no telemetry.
The Office for National Statistics is described as the UK's largest independent producer of official statistics and the recognised national statistical institute of the UK. The site presents main figures on employment, inflation, GDP and UK population, offers a local statistics explorer, and lists latest releases alongside a shopping comparison tool.
Oils is a project offering OSH, which runs existing shell scripts, and YSH, intended for Python and JavaScript users who avoid shell. Both live inside the same 2 MB oils-for-unix binary. Published documentation includes a getting-started guide, a YSH tour, an Oils reference, and comparisons of YSH with shell idioms.