Useful Tools

An interactive map of neurological and psychiatric drugs, reference molecules, their protein targets, and the evidence behind each reported action.

A Nigeria-focused checker for medicines, food, and drinks that combines pack-code checks with photos of original packaging.

RoomToCut presents a free, no-account design studio for laying out cabinets in measured rooms and exporting build and CNC files.

A Turkish-language neuropsychiatry resource pairing a browser-based 3D brain atlas with a sourced library and weekly research bulletin.

A visual-assistance app that reads text and describes what a phone camera sees, with controls designed to be found by touch.

A free surf app for Korean coastal spots that combines forecast data with session tracking on Galaxy Watch.

An open-source 2D CAD editor that runs in a browser and opens, edits, and saves DXF drawings on your device.

Harborlight pairs popular apps that have added limits, paywalls, or gone away with free browser-based alternatives.

Binnacle is a menu-bar Mac monitor that groups helper processes under their apps and offers controls for quitting apps and finding dev servers.

An in-browser image-detection playground lets visitors compare six model options, review detected labels, and optionally contribute images to a shared archive.

A Windows app for combining case documents into a labeled PDF bundle with a clickable inventory and bookmarks.

An interactive 3D map layers Colombian earthquakes beneath the country’s terrain, alongside faults, volcanoes, and seismic-hazard information.

An interactive perspective-construction sheet for artists, linking vanishing points, viewing geometry, and a box that updates with the construction.

A free browser-based tool that evens out audio in game videos and recordings, with controls for microphone voice or mixed game-and-voice audio.

A free Mac app routes music from Spotify, Apple Music, or Now Playing through a record-player-style sound treatment.

A free interactive sky map shows which planets, stars, and constellations are visible from a chosen place and time.

A macOS beta helps amateur astronomers find candidate planetary nebulae in large sky surveys and follow them toward an observation and discovery dossier.

Popple offers a set of small poetry-making sites, each built around a different writing prompt or constraint using public-domain material.

A horoscope-style tool uses Codex reset records and your quota details to help you decide whether to spend a banked reset, wait, or ration usage.

An open-source tool for land managers to compare local burn-unit settings with the National Weather Service’s seven-day hourly forecast.

A phone-side checker that assesses suspicious messages, links, sender IDs, payment requests, and QR codes, then offers a risk verdict and next steps.

A browser-based studio for turning a Singapore neighbourhood—or another mapped place—into a 3D-printable model and matching printed map.

An interactive viewer presents archived KTLX radar observations of the El Reno, Oklahoma, tornado, alongside event details and source references.

Untitled Instruments makes unusual DAW plugins, including an audio-reactive mandala visualizer and a synth whose parameters follow the moon, sun and tides.

An imaginary confectionery of paper-inspired scenes includes a free maker for creating downloadable wrapper designs.

AsBuilt presents a shared job record for contractors’ purchase orders, change orders, pay applications, and related paperwork.

CADCraft presents a browser-based CAD editor for drafting and editing DXF and DWG files, then plotting to PDF or exporting SVG and PNG.

A chess reference that measures openings and classic traps using statistics from rated games, with results split by player rating.

A browser-based DNS test for comparing resolver observations before and after connecting to a VPN, with local baselines and JSON or CSV exports.

A searchable equipment reference pairs heat-pump and air-conditioner ratings with sizing, running-cost and city-guide tools.

Invitily lets hosts customize animated invitations and send them to guests by WhatsApp, with RSVP and event details in one place.

잡무 converts Korean HWP and HWPX documents to searchable PDFs in the browser, without uploading the files to a server.

A Japanese tool for comparing electricity plans across 10 regions, using your current contract and monthly usage to estimate the difference.

A searchable guide to roughly 17,000 nationally designated historic buildings in Japan, with an iPhone app for recording visits.

A browser-based 3D previs tool for blocking scenes, directing camera moves, and exporting reference clips and prompts for AI video tools.

MilkTrust is collection-centre software for recording milk, calculating fat-based prices, tracking advances and preparing farmer payments.

MotifPad turns uploaded images into pixel art, with adjustable grids and palettes plus PNG and printable PDF exports.

This free Native American flute design tool calculates dimensions from a chosen key and hole count, then provides templates and files for making the instrument.

Nche presents a sensor system for monitoring conditions in poultry houses and alerting farmers to changes in heat, air, water, light, and bird sounds.

A Windows desktop companion gathers media controls, timers, a temporary file shelf and gentle reminders in a small, expandable on-screen island.

A searchable directory for comparing Japanese hot-spring towns, public baths, and day-use facilities by practical details and qualities of the water.

A browser-based ledger for sari-sari stores and small shops, where customers can confirm or dispute a recorded purchase through a link.

An open-source PDF workbench that runs in a browser, with tools for organizing, merging, splitting, filling, signing, and commenting on documents.

A photo converter for preparing 3D crystal engraving files, with presets and exports aimed at named laser machines and workflows.

A browser-based converter for font files that reports what each conversion preserves or changes.

A free, open-source SketchUp-style modeler for woodworkers and makers, with cut lists, nesting, and fabrication-ready exports.

An interactive tube-rolling reference for the Woo Audio WA33 Gen 2, with tube-fit guidance, combination profiles, engineering models, and a market section.

A Japanese-language calculator compares the cost of continuing employer health insurance with joining the National Health Insurance system after retirement.

A tool for turning a concert setlist and recording details into marker files for audio-editing software.

A free browser-based tool for exploring rain, ocean, nature, music, and noise sounds, building mixes, comparing them, and keeping listening notes.

A searchable map and directory of fishing ponds, managed fishing areas, and sea-fishing facilities across Japan’s Kanto region.

A searchable price index compares enterprise hard drives, SSDs, and server RAM by cost per terabyte across new, refurbished, and used listings.

Walknote turns field photos and voice notes into branded site-inspection reports, with offline capture, review, signatures, and client verification.

Weetory is a counseling-record management app for school counselors, with case and session records, school-system exports, consent workflows, and on-device writing assistance.

A free desktop app for making pattern-based music with grids, piano rolls, knobs, and code that update together.

Bashery is an Android accompaniment app that uses electronic drum-kit MIDI input to generate a band responding to your tempo, dynamics, swing, and fills.

A browser-based period tracker for logging cycles, estimating the next period, and making a printable summary for a doctor.

A browser-based beta for arranging hangar sites, aircraft, parking areas, clearances, and move sequences.

Free Windows and Mac software for copying camera footage to multiple drives, verifying the copies, and preparing proxies and post-production reports.

OpenCatio3D is a free beta web planner for fitting a catio to a home and generating a build plan.

A browser-based tool for assembling Chinese given names from classical sources, with filters for tone, strokes, character familiarity, and more.

Tone Wrangler is an iPhone app that says it can identify a song and turn it into amp and pedal settings for gear you already own.

A free collection of tools for Indian forms, scam messages, government schemes, documents, and personal finance.

A cricket video tool that links ball-by-ball scoring to clips, so clubs can find and share a player’s moments in a match.

A map of data centers across Europe, with operating status, published power figures, supporting sources, and a downloadable JSON dataset.

A browser tool that turns a roster into classroom, coaching, or game-night groups, with attendance and balancing controls.

LexyLab checks spelling as you type across Mac apps, with suggestions designed for French-language spelling patterns associated with dyslexia and dysorthography.

Upload an Excel, CSV, or Google Sheets file to get formula errors and other selected spreadsheet mistakes identified by cell, with their estimated cost.

The site makes Moroccan company announcements searchable, linking filings about incorporations, ownership changes and dissolutions to the people named and the original gazette page.

A free, open-source Windows overlay that shows MapleStory Classic World players map portals, mobs, routes, and estimated grinding rates.

A West Bengal pandal finder that maps sourced venues, suggests multi-stop routes, and lists nearby food.

This genealogy and local-history project lets visitors search indexed records about Orenburg Cossacks and related communities, with links to source scans.

A browser-based tool for measuring ring size on screen and comparing results across international sizing systems.

Apunt reads receipt and invoice photos in your browser, then exports accounting-ready Excel or CSV files.

A measurement-analysis application for MDF-3, MDF-4, and HDF5 files, with an AI assistant that can work with local models.

Free mobile-browser tools split meal bills by who ordered what and track shared expenses across a trip, with PromptPay QR codes for settling up.

A Windows app for live translated captions, in-class AI questions, notes, flashcards, and quizzes.

Coverage Field Kit presents an iPhone tool for checking lens coverage against camera sensors, comparing setups, finding rental houses, and preparing reports.

A free browser-based editor for drawing macOS app icons or building them from emoji, text, and photos, with PNG and ICNS exports.

An open-source motion-graphics and compositing editor modeled on After Effects, with animation, effects, 3D scenes and video export.

A directory of art-world opportunities, fairs and venues, with artist reviews, deadline tracking and tools for weighing the costs.

A mobile app for recording custody days, exchanges and shared expenses, then exporting dated reports for a lawyer.

Murmurly is a free, open-source Mac app for automatic call recording, on-device transcription, and system-wide voice dictation.

An interactive U.S. map catalogs abandoned railroad routes, with condition labels and information on history, bridges, tunnels, Street View, and safety.

Hey Dave presents a family assistant for a living-room TV, combining calendar, email, weather, and household reminders.

An Oregon hot-springs planner that maps and compares 16 destinations by region, fees, access, and trip details.

A Mac app that turns PDFs and scans into searchable text while preserving page layout, tables, equations, and figures.

An independent site organizes Colorado high-school mountain-bike race results into rider histories, rankings, standings and head-to-head views.

A Japanese directory compares driving-school fees by prefecture and for intensive residential courses, using prices gathered from schools’ official websites.

A browser tool for stacking fixed-tripod Milky Way photos while preserving the original foreground or blending in a separate same-view photo.

An iPhone app for short drills in poker outs, pot odds, equity, and board reading.

OverView describes a Mac app for people with low vision: hold Fn, speak a request, and have it read messages, pages, or documents aloud.

A free, open-source browser editor for reading, organizing, annotating, and saving PDF documents.

A coming-soon iPhone and Apple Watch app concept uses a little pet named Mochi to carry notes, photos, and affectionate gestures between family members.

A free browser simulator lets you pick launch and landing points on Earth, then fly a fictional rocket with guided or manual controls.

ScoreCalendar gathers upcoming results dates for US exams, with a lookup tool and a calendar of releases.

Sleeve or Slab presents a Pokémon-card grading workflow that checks centering and compares estimated grading returns with selling a card raw.

A Windows VST3 plugin separates drum loops into kick, snare, hats, and other hits, then exports parts as audio, MIDI, or sampler-ready one-shots.

A Windows tool for Philippine geodetic engineers that turns a land title’s technical description into a checked lot plan and CAD/GIS exports.

A teacher-built collection of classroom tools designed to run offline or inside a teacher’s own Google account, without collecting student data.

Telltale combines sailing forecasts, route planning, onboard instrument data and post-sail performance reviews across phone, watch and web.

A workflow tool for horse-blanket cleaning and repair businesses, covering intake, service tracking, returns, and invoicing.

A free troubleshooting diagnostic and brand-specific guides for HP, Epson, Brother, and Canon printers, with a paid Fix Kit for deeper repair sequences.

A browser-based set of 31 converters for electrical sizing, pricing, unit conversions, and supplier product data across US, Canadian, and European standards.

A Mac utility that lets you place windows into ready-made or custom regions by holding Shift and dragging.

A free Shopify scan checks five key pages for accessibility issues; paid fixes are made in the store’s theme code rather than through an overlay.

A free-reed instrument reference that lets visitors look up an accordion, concertina, or bandoneon by maker and serial number.

AcreLog presents an equipment-maintenance log for farmers, with due-work tracking, parts inventory, and job records designed for use in the field or shop—even without a signal.

A public dashboard organizes weekly SEC-reported yields, fund sizes and unitholder counts across Nigerian collective investment schemes.

A browser tool that compares two Ableton Live project files and lists changes to devices, settings, clips, notes, and automation.

Anash presents a synagogue tool for turning davening rules and community details into weekly schedules, wall displays, emails, and texts.

A regional kayak-fishing guide paired with a private trip journal and optional community comparisons.

A paid system for sports clubs that submits municipal field reservations at opening times and helps manage the bookings afterward.

Local-first desktop software for appellate brief preparation and criminal discovery, aimed at New York and federal practitioners.

A Carlson add-in that pulls county GIS parcel boundaries and record labels into CAD drawings.

A free Japanese board-game toolkit for calculating scores, checking card-sleeve sizes, and planning a Game Market visit.

A daily chess game asks you to estimate White’s expected score in five positions from real rated games.

Callout presents an iPhone and Android app that formats crew rosters, syncs them to a calendar, and alerts pilots and cabin crew to open positions during standby.

A browser-based workflow for matching sports-photo jersey numbers to a roster, writing agency-style captions, and embedding them in IPTC, XMP, and EXIF metadata.

Xeso lets visitors check a Vietnamese lottery ticket by entering its number and province, and offers guidance on collecting a prize.

ChromaFret presents interactive guitar tools for exploring chord shapes, keys, scale degrees, and progressions.

A Japanese tool that turns a used-home listing URL into a preliminary assessment of the property’s risks, costs, and value.

A quoting tool for CNC shops that estimates per-part costs from a 3D model and technical drawing, with a breakdown of materials, machining, setup, and programming.

A web and Android system for tracking poultry production, stock, sales, expenses, and farm teams, designed in Mali for use across Africa.

A browser-based tool turns SAP budget, actuals and purchase-order forecast extracts into a commitment review by cost object, vendor and PO line.

A free calculator estimates conduit fill from wire type, gauge, count, and conduit choice, then identifies the smallest size that fits.

Contact Sheet Studio turns photo folders—including RAW files—into numbered, print-ready PDF contact sheets in a browser editor.

Cooldown describes an app that tracks phone use and rest, then lets a group share limits for chosen apps through a communal charging dock.

A tool for café operators to compare nearby menu prices, new items and offers.

A planned iPhone and iPad cleaning app turns household tasks into a shared pixel-house routine, with chores organized by room and small daily picks.

A free checker for publishers that inspects a site's robots.txt—or pasted rules—to flag when AI-training restrictions may also block AI-search citations, then offers copyable fixes.

The service sells roof and exterior measurement reports based on public LiDAR and aerial imagery, delivered as PDFs and CAD/CSV files.

A guide to choosing and bringing home a cut-your-own Christmas tree, paired with a directory of Ohio farms and a ZIP-code-and-date trip planner.

D2R.ORG brings together Diablo II: Resurrected game data, calculators, live trackers, mods, and an open-to-read community forum.

A macOS menu-bar app for dimming MacBook displays below the system minimum and controlling external monitors from the keyboard.

Dayleaf is a digital journal that turns writing and photos into scrapbook-style pages, with formats for daily notes, trips, media, food, fandom, and more.

An 11-tab Excel and Google Sheets kit for quoting detailing jobs, tracking work, and estimating profit.

A browser-based canvas for making flowcharts, mind maps, org charts, technical diagrams, roadmaps, and more.

An offline iPhone music player for listening to your own files with sound-shaping tools.

This Autodesk Inventor add-in says it can generate manufacturing drawings from 3D parts and assemblies, with editable drawing, PDF, and sheet-metal DXF outputs.

A browser-based planner for checking shifts and runs against EU and GB drivers’ hours rules.

An assistant for small CPA firms that audit 401(k) and other employee benefit plans, focused on testing participant data and drafting audit workpapers.

A browser-based calculator estimates residential electrical loads using selected NEC 2023 methods and can produce a step-by-step PDF report.

A workshop tool for planning metal cuts from existing offcuts first, then requesting only the material still needed.

An interactive ESP32 pinout for four boards, alongside five free electronics calculators for common project decisions.

Evenly Lab presents a bilingual shopping assistant intended to guide visually impaired shoppers through partner stores and read product information aloud.

A UK-focused reference for electric-car charging times, range, running costs and towing limits, organized by car and version.

A browser-based pixel-art adventure that pairs radio or local music with a growing party.

A hill-bagging app for tracking 1,065 Wainwrights, Munros, Corbetts and Grahams, with offline maps and Strava imports.

Fidgetto puts 3D spinners, clickers, pop-its, dice and other fidget toys in floating desktop windows.

A collection of browser-based tools for preparing paperback files, ISBN barcodes, shipping labels, and print images.

A Danish database lets visitors compare safety shoes by protection class, features, weight, and prices from local shops.

A cross-platform viewer for searching fire-panel configurations and preparing field test sheets.

A browser-based planner maps the firefighter hiring process from deciding to apply through academy and probation.

A browser-based tool for measuring floor plans and estimating room areas and building materials.

FlyRobert is an iPhone app that uses GPS to show a flight’s position, speed, altitude and estimated arrival time without Wi-Fi.

A free iPhone app helps people choose among restaurants, dessert shops, and drink shops near National Taiwan University, using filters, a lottery, and a map.

A planned Mac app for turning filmed tennis matches into point clips, scoreboards, highlights, and vertical videos.

A browser-based vegetable garden planner that maps sun and shade across a yard and organizes crops, spacing, planting dates, companions, and rotation.

GearPad pairs an Android phone with a Mac or Windows computer as a Bluetooth keyboard, letting indoor cyclists tap on-screen buttons to send game shortcuts.

A browser-based tool that turns an image into PBR texture maps, with a live 3D preview and export options for common 3D workflows.

A food-cost tool for independent restaurants that reads supplier invoices and tracks ingredient prices over time.

A bill-checking tool that looks for possible electric-billing errors and offers dispute guidance.

Gizzago is software for toy libraries, tool libraries, baby and sling libraries, and other groups that lend things to their neighbours.

A free, open-source macOS utility for finding and switching between windows and browser tabs with the keyboard or trackpad.

A searchable court-opinion index pairs case records with model-written analyses and displayed grades for judges.

A browser-based scorekeeper and rules guide for playing golf with a dartboard.

An open-source, Rust-based spreadsheet presented as a browser app for editing XLSX files without uploading workbooks.

A directory of 85 New York gyms with dry or infrared saunas, listing locations and ways to get in, from day passes to memberships.

An independent guide for checking game editions and requirements, with browser-based tools for recipes, materials, checkpoints, and puzzle hints.

A Korean-language directory for finding barefoot red-clay trails, with location, parking, and facility details.

IGOR brings countdowns, teleprompter text, video playback, capture devices and NDI sources into a tool for Windows and Mac.

Kalon Blends offers a browser-based mixer for custom fantasy-color jumbo braid-hair recipes, with a pack-count estimate and optional availability notifications.

A $19.99 menu-bar app for routing selected Mac apps through a VPN or bypassing some ISP filtering without one.

KeyAgain offers Telegram, beta WhatsApp, and a simple AI assistant for compatible classic keypad phones.

A working elementary-school teacher publishes free Excel, EXE and browser-based tools for grading, timetables and routine school tasks.

A browser-based tool that draws Power BI model diagrams and measure dependencies from .bim and .vpax files.

An Arabic-first tool for turning TVs and tablets into shared boards for routines, instructions, and photos, updated by voice, text, or WhatsApp.

A free calculator for B&Bs, holiday-let owners and Airbnb hosts in Scotland and Wales to work out visitor-levy figures from booking data.

LifeTap demonstrates a scannable patient card that opens emergency information across EMT, doctor, and patient workspaces.

A visual inventory tool for mapping a yard and locating vehicles by details such as VIN, plate, or spot.

A macOS window manager that places windows side by side on a scrollable strip instead of shrinking them to fit the screen.

A Madden NFL fan site pairing scheme guides and coverage explainers with an interactive lineup and scouting tool.

A learning site for Taiwanese mahjong pairs a tai-scoring calculator with rules, a glossary, and a mobile game in development.

Mazgato is a self-hosted CRM for car washes, linking plate-based customer lookup with orders, staff work, billing, scheduling, and inventory.

A free browser-based tool turns BMLT recovery-meeting data into printable schedules, PDFs, Word files, and spreadsheets.

A free bar- and bat-mitzvah planning guide lists 82 North Shore vendors, showing the prices six publish alongside advice on booking order.

A browser-based sampler, clip launcher, drum machine, and synthesizer for making music without installing software.

A Mac clipboard manager that places recent copies, search, and saved items in the notch—or at the top of the screen on Macs without one.

A browser-based tool explains terms in radiology reports in plain English or Spanish, with translators currently listed for brain and spine MRI and angiograms.

A free, ad-free Tamil calendar showing daily panchangam details and auspicious or inauspicious times for a selected location.

A visual-schedule app for iPhone and iPad that lets families, classrooms, and therapy settings build Now/Next boards, picture choices, and routines.

A free web tool for comparing nutrition information at UK restaurant chains and choosing orders that fit a daily goal.

Rankings, schedules, playoff brackets, and selected matchups for Maryland public high-school sports.

A browser-based workspace for moving highlights and comments from an annotated PDF to a revised version.

A map-based editor turns clear-day Sentinel-2 satellite imagery into custom posters.

A free serial-number lookup and dating archive for vintage organs, covering Hammond, Leslie and a dozen more makers.

A power-station finder matches household or RV device loads and outage runtimes to portable battery models.

An interactive guide lets padel players browse racket models in 3D, compare specs, and find options matched to their playing style.

Payslip presents a Zcash payroll system where contractors receive shielded payments and viewing keys let each person see only the records they’re meant to.

A browser-based planning board for construction work, combining task cards, pull-plan timelines, drawing annotations, RFIs, decision records and file exports.

An iPhone tracker for logging plates at all-you-can-eat restaurants and comparing what you ate with what you paid.