Useful Tools

A directory of prayer facilities at 206 airports in 69 countries, with details travelers may need before they land.

A browser-based tool turns FIT, GPX, TCX, or Garmin ZIP ride files into short, shareable cycling videos with maps, photos, and ride statistics.

Eleven working instruments visualize subjects ranging from historical empires and daily NASA imagery to weather, orbital air data, the night sky, and the planets.

A searchable tracker estimates whether trading-card booster boxes are worth opening, using Cardmarket prices and simulated pulls.

An open evidence browser for nonclinical precedents across approved bispecifics, ADCs, oligonucleotides, gene therapies, and cell therapies.

An interactive explainer compares estimated data-centre water consumption in 2023 with the IEA’s 2030 projection.

Tunero is a free, open-source Windows 11 utility that scans for settings affecting game performance and explains its suggested changes.

An interactive educational model lets readers change heel-loading conditions and risk factors to see how published evidence describes pressure-ulcer damage.

A Korean-language collection of free browser games, randomizers, QR makers, and other small amusements, designed to work without an app or account.

A free Mac app for recovering deleted photos, videos, and other files from SD cards, USB sticks, and external drives.

An app for trading-card vendors to manage inventory, prices, trades, sales, and show records from a phone or tablet.

A French-language art research site connects artworks, cited sources, specialist disagreements, and museum spaces in an explorable graph.

A festival guide that maps Durga Pujo pandals across seven cities, with filters and information about what’s on, when, and how to get there.

A downloadable CAD app for designing 3D-printable parts, with tools for threaded fittings, meshing gears, precise measurements and watertight STL exports.

A maple-season guide with sap-flow forecasts, regional tapping dates, tree information, and sugaring calculators.

This free, open-source desktop app combines DGIST course materials, assignment deadlines, school email, academic schedules, and notices in one dashboard.

A free reference and toolset for planning characters, generating sandbox settings, and looking up Project Zomboid Build 42 data.

A free, no-registration planner for bus and shared-minibus trips in Damascus and its surrounding countryside.

PitOwl is a Windows tool for Gran Turismo 7 endurance races that reads PS5 telemetry, recalculates fuel and tyre strategy, and gives spoken pit calls.

An interactive globe and audio player for exploring recent USGS earthquake catalogue data.

QuietlyChanged publishes daily, plain-English reports on changes to popular services’ pricing, terms, and privacy policies.

An open-source cookbook maker that pairs scanned family recipes with the people in a WikiTree family tree.

Compare portable power stations by whether they can start an appliance and how long their batteries can run it.

An interactive planner maps what may be visible from your location and compares which smart telescopes can frame those objects.

BLUFF checks claims about Robinhood Chain contracts and transactions, then presents a sourced casefile showing what its public evidence supports—and what it cannot establish.

A daily dashboard for tourism businesses in Santa Teresa, Costa Rica, combining booking estimates with surf, weather, local news, and operating resources.

An open-source Android app that organizes jazz practice with spaced repetition, timed sessions, ear-training, and instrument-specific tools.

Achilles presents an iPhone training app for multisport athletes, combining readiness estimates, progressing workout plans, and tools for fuel and mental training.

A filterable comparison of 52 coaching apps for running, cycling, triathlon, and other endurance sports, ranked against eight coaching dimensions.

A free generator for building and downloading FAA-standard airfield signs as SVG or PNG, individually or in intersection arrays.

An interactive reference to 1,074 trees and shrubs, pairing botanical notes with drawing studies and 3D explorations of tree form, roots, and growth.

Copyr is a macOS file-copy app that can skip unreadable files, resume interrupted transfers, and report what happened; a Windows version is also listed.

A precision-rifle app that turns target photos into shot-group statistics and organizes results across loads, barrels, and range sessions.

A browser-based indoor cycling game pairs real-world routes with smart trainers, letting riders compete with other people, bots, or their own past rides.

Groundsheet presents a property screening report built from public federal and state environmental records.

A free desktop app uses DJI SRT telemetry to add customizable flight data and a route map to drone videos.

A privacy-focused app for logging drug use, viewing estimated effect timelines, checking substance combinations, and keeping a journal.

A browser-based suite of procurement and operations calculators for hardware teams, spanning product feasibility through supplier risk and end-of-life.

JawAtlas describes a free, offline CBCT viewer for iPhone and iPad, with linked scan planes, panoramic reconstruction, 3D, and augmented reality.

An editable planner estimates anesthesia staffing costs as rooms, supervision ratios, pay, and schedules change.

A Providence guide pairing local food, shows, deals, and community picks with a budget-based night-out planner.

A free, bilingual app for paraglider and hang-glider pilots that records flights, shows which friends are airborne, and supports voice notes in the air.

A macOS menu bar app that restores windows to their displays after sleep, unlock, or a monitor reconnect.

Marinalo brings together marina slip prices, public boat-ramp details, tide times, and an annual boat-cost calculator.

A browser-based pattern-drafting tool for made-to-measure menswear and womenswear, with grading, fit checks, lessons, and print- and CAD-ready exports.

A free browser-based Silksong companion that reads a computer save to track missing completion items, map them, and compare Tools and Crests.

An interactive QR editor that adjusts error correction as you paint or place artwork over a code, aiming to keep the link scannable.

A free trainer revisits your worst mistakes from rated chess.com games and asks you to find a better move.

An independent map organizes spinal-cord injury recovery research, separating what is available in clinical care from human trials and earlier-stage science.

A collection of free sourdough calculators for scheduling a bake, adjusting recipes, and working through baker’s math.

A browser-based simulator for planning underwater strobe placement and seeing where light may create backscatter.

An interactive tennis data journal with charts comparing players’ shot patterns, serve performance, and point outcomes.

A parcel-level census and map of Catalonia’s industrial, logistics and service land, combining buildability with current-use classifications.

A Thai-language toolkit and reference site for cable sizing, voltage drop, short-circuit checks, conduit fill, and other electrical calculations under Thai standards and IEC.

A set of free, ADHD-focused tools for task-starting, waiting mode, and finding words for difficult replies.

TributeMaker guides families through turning photos, clippings, and stories into a memorial website.

A browser-based floor planner for Nigerian homes and shops, using room measurements, furniture sizes, and doorway checks to help plan a space.

A German-language calculator estimates heat-pump running costs, subsidies and optional solar savings using local weather and solar data.

A tool for calculating inheritance shares under Algerian family law and preparing inheritance certificates for Word, PDF, or print.

A browser-based photo editor for local, non-destructive edits, layers, and optional agent-assisted batch adjustments.

A browser-based checker for ADP pay statements that screens Michigan wage, pay-stub disclosure, deduction, and paid-sick-time rules.

A bilingual Turkish-English guide helps rural investment applicants explore IPARD III grants, estimate funding, and follow application steps.

Houselights presents a robot designed to clean cinema auditoriums overnight, with a simulation and a calculator for estimating staffing needs.

A browser-based image splitter turns photos and graphics into grid tiles or horizontal and vertical strips, with previews and downloadable exports.

A free online set of printer test sheets, downloadable PDFs, and troubleshooting guides for checking print quality and common problems.

A weekly New York small-show guide pairs concert listings with a playlist of songs by the artists playing.

A Japanese-language directory of free calculators and practical checks for accounting and back-office work.

A free Terraria 1.4.5 toolkit for checking boss progression, planning NPC towns, calculating crafting materials, and more.

WebGCM runs a global climate model live in the browser, with interactive views of winds, temperature, rain, clouds, ice, and ocean currents.

A free scanner checks how well AI agents can read and act on a business’s website, alongside open city-by-city indexes of business sites.

Daycell presents a notebook-style journal with streaks, prompts, and insights, stored in a plain Markdown file the user owns.

A browser-based toolkit for working with PDFs, images, audio, text, and other files.

An independent F1 viewing tool for comparing lap times, exploring telemetry and race replays, checking live timing, and consulting race documents.

An interactive baseball tool for exploring 3-D ball flight, running Monte Carlo swings, and finding hits that land at a chosen spot.

A community map for checking Bali fuel-station reports, queue times, and whether a pump is reported out of fuel or closed.

A map-based search for Czech homes to rent or buy, with listing histories, monthly-cost estimates, deal comparisons, and transit-time filters.

Diffcut is an open-source Mac video editor that combines timeline editing with on-device captions, voiceover, generated audio, and browser capture.

A hockey team tool for logging faceoffs and viewing splits by zone, dot, center, matchup, and period.

A free browser-based calculator estimates freight density and NMFC class for shipments with one or more pallets.

ScholarFit organizes scholarships for military families and Texas students, with eligibility labels, award amounts, deadlines, and official-source links.

A monitoring service that checks dump-truck haulers’ authority, insurance, and safety records, then alerts users to changes.

A browser-based checker compares app preview videos with Apple’s requirements for product-page headers and search results.

A beta clinical history-taking app for medical schools, clinics and hospital wards, with bedside prompts, safety checks and device-local records.

A Michigan-focused whitetail app that uses hunters’ logged spots and sightings to recommend when and where to sit.

A free browser extension that presents images from GitHub pull requests, issues, and comments in an on-page preview instead of opening new tabs.

Kainos is free, open-source Windows SDR software for the Hermes Lite 2, combining radio controls with digital modes, spotting, and KiwiSDR listening.

Lescut is cloud-based nesting software for leather and textiles that turns part files and material data into cutting files.

A no-sign-up calculator estimates how much insulation to add, including target R-value, material depth, bag or sheet quantities, and typical material cost.

The browser tool compares MapleStory Classic World shop listings with sale-price estimates and highlights potential flips.

A browser-based tool that turns audio or video soundtracks into editable MIDI notes without requiring an account.

Naaf presents Sjef, an assistant for bicycle shops that answers staff questions using the shop’s own prices, rules, and procedures.

This independent reference tracks announced products, sample cards, promos, and events for Bandai’s Naruto card game ahead of its stated June 2027 launch.

A public guide and comparison tool for pet insurance prices and ratings, organized by state, dog breed, and age at enrollment.

A browser-based tool for turning photos into a captioned photo-book PDF, with support for descriptions from a Google Takeout export.

A free Mac app for tracking spending, income, bills, and projected balances, with money data stored on the Mac by default.

A free browser tool for planning Pokémon TCG binders by illustrator, tracking owned cards, and printing black-and-white placeholder proxies.

A Mac cleaner for developer clutter that identifies files and caches, explains what they are, and lets you choose what to remove.

A desktop and Android utility for streaming audio between devices and sharing keyboard, mouse, and clipboard control over a local network.

A healthcare-marketing copy checker that flags regulatory and platform-policy language, cites sources, suggests edits, and records approval against exact wording.

A free browser-based tool for designing sealed or ported subwoofer boxes and producing build plans.

A beta tool for CS2 teams that analyzes uploaded demos and answers tactical questions with linked rounds, charts, and map-specific reports.

A browser-based room sketcher for drawing walls, placing doors and furniture, and exporting plans and parts lists.

A Chrome extension for sorting WhatsApp Web chats into folders, searching messages, tracking replies, and exporting conversations.

A Turkish-language toolkit for machining starting values, ISO 286 fits, thread references, and angle conversion.

A Windows app where children choose characters and describe scenes, then turn their story ideas into voiced, animated cartoons.

A Portuguese-language animal search site for exploring species by name or characteristics, with taxonomic, habitat, diet, and conservation information.

A service that checks assembly instructions, drawings, manuals, and parts lists against a company’s standards, then offers corrections and translations.

A mountain-trip planning site with 3D routes, date-specific packing lists, and guidance on when to turn back.

ARTEM presents a browser workspace for teams to compare geospatial imagery, record sourced findings, discuss evidence, and assemble briefs.

AsDrawn presents a workflow for checking 2D AutoCAD plans against site conditions and keeping trades informed about changes.

A local-first desktop planner that uses natural-language chat to fit tasks around classes and other real calendar commitments.

A mobile app for GCC off-road clubs to organize drives, form skill-level convoys, and navigate in the desert.

A live map of Bali fuel stations, updated with anonymous reports from people at the pump and in queues.

A free simulator estimates how much spirit overpouring could cost a bar, using four adjustable inputs.

A searchable plant encyclopedia with profiles covering identification, growing conditions, native range, and toxicity.

Bubjjak offers free, no-sign-up tools for drafting common documents, estimating refunds, organizing evidence, checking an administrative appeal deadline, and working with PDFs.

A browser-based tool that changes image DPI metadata in bulk or sets images to a chosen print width.

A free French/English calculator that estimates how much to feed an ant colony based on its species and current conditions.

A browser-based tool for transcribing audio or video and exporting text, subtitles, or video with captions burned in.

A downloadable guide and browser-based matching tool for people choosing where to live or buy property in Puglia.

Celebrable says it turns a short event description into a shareable invitation website with RSVPs, maps, a countdown, and event details.

A browser-based chord player lets you choose roots and chord types from keyboard mappings, build progressions, and connect MIDI.

An open-source atlas turns public transport schedules into an explorable day and a collection of network posters.

A free CTR calculator and Search Console analysis tool for examining how impressions and click-through rate contribute to changing clicks.

An interactive globe presents country-level Christian-presence estimates, unreached people-group data, Bible-translation information, and historical views.

A party-game kit for birthdays, bridal showers, and game nights, with phone-based play and printable decks.

Cotio is a Windows and macOS tool that says it converts STEP parts or assemblies into dimensioned PDF and DXF manufacturing drawings on your computer.

Crispr AI presents an Android app that runs open AI models on your phone, with no account or cloud chat required, according to the site.

A Mac app for converting PDFs and scanned pages into Markdown, Word, and CSV while retaining document structure.

A browser-based jewelry workflow that presents CAD-file checks alongside catalog images and 360° views.

A service for restaurants in Tsukuba and Tsuchiura to compare designated-driver wait times and request a ride without calling operators one by one.

A searchable dashboard for copyright removal notices sent to Google, with domain, agency and rights-holder lookups, monthly trends and URL outcomes.

A browser-based tool turns artwork into embroidery machine files, with automatic and hands-on digitizing tools.

A browser-based tool for viewing and validating EU e-invoices, with JSON extraction for bookkeeping or ERP import.

A conference-memory app that keeps slides, written notes, and voice notes together by event, then lets users search across them.

Practice-management software for expert witnesses, covering cases, time logs, invoices, and testimony disclosures.

Faders splits a live stream into voice, game, and music layers so viewers can adjust each level independently.

A searchable directory of security vendors’ appeal contacts and guidance for website and file detections.

Faunaro maps 14 wildlife-photography scenarios to camera-specific settings, menu paths, and field tips for six camera systems.

A Chromium browser extension that tracks fares from chosen airports, marks how old each price is, and sends alerts for saved searches.

A Montana and Idaho river-float calculator estimates trip duration from gauge flow, craft, and launch timing, with a form for reporting hazards.

A free, no-sign-up tool that turns typed details into a flyer you can download as a print-ready PDF or image.

FlyScout identifies unusual aircraft activity and presents flight tracks for filtering, replay, and exploration.

A gardening tool that looks up freeze dates by NOAA weather station and uses them to map out seed-starting and planting times.

A fan-built resource for FIRST Tech Challenge event results, team histories, rankings, and performance statistics.

A collection of garage-workshop calculators and scaled layouts helps users plan equipment, circuits, heating, lighting, and space around a parked car.

GeoSeal is a forthcoming phone camera app that adds time and location details to photos and describes a way to check their integrity in a browser.

AccessRecord publishes accessibility conformance reports as public pages linked to the product version they describe.

A Melbourne project describes a TV-based home assistant for family calendars, email to-dos, weather alerts and household briefings.

MapView checks an Australian address against property, planning, school, sales and neighborhood information, then presents the results in an app.

A rate-check and job-finding page for electricians considering data-center work, with pay comparisons and links to employer postings and IBEW local calls.

An iPhone period tracker for PMS and PMDD that turns daily notes into a report comparing symptoms across cycle days.

A forthcoming offline iPhone sky atlas that calculates the sky for a chosen place and time.

A desktop app for removing background noise, leveling, trimming, splitting, and converting audio on Mac, Windows, and Linux.

An Android mind-mapping app that uses context-sensitive radial menus, keeps maps on-device, and exports them in five formats.

A U.S. gold-mine map and directory combining mine records, historic-producer counts, and places to tour or pan for gold.

Golf Cart Map shows golf-cart and low-speed-vehicle routes around coastal San Diego, marking roads by posted speed limit.

A Mac and Windows app for swiping through tracks and DJ-set discoveries, then collecting picks with BPM and key metadata.

A paid service sends opt-in scam-email practice and short lessons to family members, with progress reports for the subscriber.

A browser tool converts MIDI files, audio files, or library songs into a hummed version that can be previewed and, with Pro, saved as a WAV.

A Korean-language running tool that turns race times into performance tiers, VDOT predictions, and training paces.

A free, ad-free navigation app for Iraq with turn-by-turn guidance, route alternatives, driver reports and live trip sharing.

A Japanese bookkeeping service for dog and cat breeders and pet shops, described as turning animal-life records into statutory ledgers, periodic reports, and microchip-registration CSV files.

An app for getting around Ischia by bus, with route directions, departure timing, stop alerts, and offline access.

A Mac utility for searching Messages history by words, people, dates, links, and attachments using an encrypted local copy.

A free website checker sends requests from 28 servers across six continents and reports status and response time by location.

This Korean-language site brings pregnancy, childcare, benefit, vaccination, and checkup calculators together around a due date, period date, baby’s birthday, or location.

A browser-based judo practice tool with step-by-step belt-tying demonstrations and webcam-guided hand-position drills.

A Japanese family shopping-list app that organizes groceries by store and shopping order, with shared lists and spending records.

A browser-based prototype for adjusting seating at adult workshops when participants are absent, then preparing cards for people whose seats changed.

A Chrome extension that says it classifies LinkedIn posts in your browser and lets you hide selected post types before you read them.

A free basketball coaching tool for building practice sessions and drawing animated plays to share with a team.

A Windows video editor for turning screen recordings into product demos, launch trailers, vertical clips, and GIFs.

A browser-based photo editor that turns plain-language instructions into photo edits users can adjust as layers.

A Windows app for writing Japanese doujin audio scripts, with cast-aware drafting tools, progress tracking, and formatted PDF exports.

A Persian-language guide to Iranian career and education pathways, with job and degree profiles, workplace rules, official-system links, and calculators.

A customer-record and memorial-anniversary system for Japanese stonemasons that prepares family notices and address labels.

A free browser-based tool that calculates pay differences from payroll files and prepares a Spanish pay register for download.

A Spanish-language tool for importing, organizing, and sharing Magic: The Gathering card collections so other players can search them and send requests.

A browser-based converter turns Pipedream workflow exports into n8n workflows, with a checklist for steps that still need attention.

A planned free iPhone app for finding Texas highway mile markers, nearby 911 addresses, and public property records—even offline.

A browser-based checker and guide for formatting APO, FPO, and DPO addresses and understanding their ZIP-specific mailing rules.

A free online millisecond clock that compares several time sources and shows an error bound for the displayed time.

A mapping tool for teams to record pins, photos, sketches, and areas in shared workbooks that can keep working offline.

A free site for calculating BaZi and Zi Wei Dou Shu charts, with readings paired with classical texts and a daily guide keyed to the solar terms.

An app for PG&E customers that compares residential rate plans using their smart-meter usage and says it checks again every month.

Northfix presents a private network map for tracking professional connections, follow-ups, job changes, and warm introductions.

A collection-management platform for ancient-coin collectors, with cataloging, provenance tracking, image tools, and printable collection materials.

A bookkeeping tool for Nigerian shops and service businesses, presented as turning spoken sales in Pidgin or English into ledger entries, receipts, and WhatsApp balance reminders.

A free browser calculator estimates which Linux distributions and local AI models may suit an older PC, based on its hardware.

A Korean route-weather tool presents traffic, weather forecasts for expected passage times, and nearby road-surface observations.

A searchable map and state directory of public boat launches, with details on access, costs, managing agencies, and reported closures.

A searchable catalog that helps people find free, open-source alternatives to familiar paid apps.

Upload a recording and Orchestra Reel identifies its instruments, then stages a 3D orchestra performance you can preview and export.

A browser-based tool for arranging and rendering RuneScape characters, creatures, items, and effects, with controls for pose, gear, lighting, and export.

Отлип is assembling a Moscow pilot for an NFC token that blocks selected social and short-video apps until you tap the token in another room.

A free ledger for AA, NA, and other recovery groups to record contributions and expenses and prepare monthly treasurer reports.

A free browser-based toolkit for subscription apps, with calculators for paywall A/B tests, sample size, LTV, payback, and traffic splits.

A free toolkit for merging, editing, converting, signing, and otherwise working with PDFs on your device.

A free, browser-based planner lays out furniture parts on MDF sheets and produces a printable cut list.

Port2Rail is software for small ports and harbor railways, bringing wagon handling, dispatch, ship calls, and cargo operations into one system.

An independent lookup tool for finding Nepal postal codes by address, Nepali or reviewed English name, and exact code.