Useful Tools

An iPhone and Apple Watch golf GPS that pairs pixel-art course maps with shot tracking, strokes-gained stats, and round awards.

A runtime calculator compares portable power stations against the appliances you need to run and how long you need them to last.

A free library and search tool that rewrites open-access research papers in plain language while keeping the original paper alongside.

A browser-based design tool for planning woven baskets and producing printable patterns, cut lists, and instructions.

A tool for finding and running radio nets: net control logs check-ins, hands off control, and can share a live page showing who is logged.

A set of browser-based ADHD tools, printable planners, and practical guides for getting unstuck.

An independent live map and analysis dashboard for Kraków’s trams and buses, using vehicle positions to show delays, congestion and service patterns.

A browser-based tool that converts 3D part files into manufacturing drawings, with dimensions, hole details, notes, and export options.

A free, no-account tool for contiguous-U.S. addresses that presents mapped soil properties, weekly county drought context, and inspection-preparation workflows.

An unofficial ICARUS database for searching items, recipes, stations, talents, and crafting chains.

A browser-based firmware tool for Elektron Machinedrum owners to combine sound models and samples into a custom firmware file.

Mondo Morseale presents virtual HF radio bands through an Android app, for Morse practice, listening, and internet-based exchanges.

A Hindi- and voice-first service that translates tomorrow’s weather risk into estimated rupee impacts and practical actions for street vendors and small shopkeepers.

Mayfly builds one-page websites for time-limited events and notices, with a set expiry date and one-time pricing.

A Mac and Windows app that models a film-photo process from lens and film through development and printing, rather than applying a simple filter over a finished image.

A bilingual guide for animal owners that offers symptom urgency checks, care information, and clinic forms for discussing treatment with a veterinarian.

A browser studio synthesizes app and website interaction sounds from a shared theme, with an open-source engine for using them in a project.

A private workplace log and planning tool for people who suspect they may be pushed out, with deadline prompts, severance estimates, and links to support.

A boating planner that brings NOAA bridge air-gap observations, a separate tide prediction, boat height, and a planning buffer into one passage brief.

A free, open-source browser calculator for assessing lightning-discharge risk under Colombia’s NTC 4552-2:2023 and IEC 62305-2.

A microphone-based classroom game that turns staying under a noise threshold into shared belt progress.

An Australian 4WD community for logging vehicle builds, finding campsites and parks, comparing modifications, and sharing off-road news.

A browser-based simulator lets designers view remotes, app screens, and labels at real size and distance through modeled eyesight profiles.

Independent analytics compare how CoW Protocol solvers compete in batch auctions on Base.

An interactive 3D space explorer with controls for scale, planetary positions, and the passage of time.

A free activity library for medical speech-language pathologists, with exercises for memory, safety awareness, medication management, problem-solving, and health literacy.

A VST/AU synthesizer that maps chess positions to sounds and advertises online producer battles.

Go2Cue coordinates crew cue lights and can connect stage-manager calls to lighting, sound, and video desks.

A phone-based operations platform for polyhouse and greenhouse farms, covering harvest, spray and fertigation logs, attendance, payroll, dispatch, and sales.

A free, five-step calculator estimates a suitable greenhouse temperature based on local light and weather, or the grower’s own sensor readings.

A free reference site for machinists, with bolt torque, tap drill, drill size, bearing, and steel-grade charts plus calculators.

A Spanish-language calculator turns chain standard, pitch, and tooth count into sprocket dimensions, workshop measurements, and a downloadable DXF profile.

A free WhatsApp guide for finding Kolkata Durga Puja pandals, saving a hopping list, and checking themes, routes, and metro guidance.

An interactive model lets River Hills members change assumptions and see how assessments, monthly dues, and capital projects affect the club’s fund balance.

A UK lead service that filters newly approved planning applications for scaffold-relevant work and sends digests to scaffolding firms.

A free calculator compares estimated fees and net payout across eight selling platforms, with inputs for shipping, taxes, labels, and seller-specific settings.

A desktop client for PostgreSQL, MySQL, MariaDB, and SQLite that combines data browsing with schema exploration and previewable changes.

Snapback buffers HDMI video on a Raspberry Pi so you can save a clip or screenshot from your phone.

A free set of ten calculators helps people estimate startup costs, pricing, fees, break-even sales and more.

A free tool for searching Taiwanese swimmers’ results, comparing age-group rankings, and checking meet-day event and check-in times.

A World of Warcraft addon that turns a character’s gameplay into a narrated, persistent story.

A Korean-language tracker organizes tax changes by status, effective date, and the people they may affect, with links to source material.

An independent Dragonkind companion with Threshing guides, a browser-saved run journal, a retry timer, and shareable dragon bond cards.

ToxinClass presents an early-access classifier that labels animal venom protein sequences as toxic or atoxic.

A research tool for tracing claims back to earlier uses and mapping how competing narratives form around an event.

A listening-practice interface for finding words and phrases in real YouTube clips, with a substantial set of Japanese pronunciation examples.

A macOS app for recording online calls, transcribing them locally, and recognizing recurring speakers by voice.

A free map of campervan and van stops, facilities, and parking, with place data for France available offline.

A browser-based workspace for opening data files, exploring tables, running SQL, making charts, and exporting results.

A personal project that presents a day timeline assembled from desktop, smart-home, and wearable signals, without manual timers or screenshots.

Suchi presents a self-hosted document archive that takes in files, names and files them, and makes their contents searchable.

A Japanese guide to furusato-tax return gifts, organized by estimated arrival time, storage method, and item type.

An interactive simulator for exploring how air, heat, and CO₂ move through a configurable room.

A free Mac menu-bar app that estimates when a disk will fill, explains storage categories, and offers cautious cleanup.

FirstDig monitors city building-permit records and emails contractors new permits that match their service area and trades.

A public comparison tool for browsing modular tool-storage products by category and lining up competing brands side by side.

A quoting tool for CNC and sheet-metal shops: upload a PDF drawing, optionally add a STEP file, then price parts against editable shop rates.

4ナシ lists Japanese restaurants where wheat, plant-based oils, dairy, and sweets or sugar are avoided or can be left out of an order.

A free roster builder for health units in Ghana that schedules shifts around unit rules and gives staff a phone-friendly calendar.

A free calculator estimates Australian residential aged-care costs per fortnight using household finances, home circumstances and room-payment choices.

A tool for real-estate developers that turns a masterplan, unit inventory, and CAD drawing into per-unit contract annex pages.

A configurable management system for schools, colleges, Veda pāṭhaśālās, research institutions, and multi-campus organizations, covering records from students and staff to fees, hostels, transport, and buildings.

Botsize compares your lawn or home measurements with robot mower and vacuum specifications to show which models fit, are tight, or fall short.

A Mac app that catalogs video on your drives so you can browse contact sheets and search for footage without moving the original files.

It drafts an OSHA abatement packet from an inspection record, then lets employers confirm corrections, attach evidence, and prepare the paperwork for signing.

A recordkeeping tool for oral-surgery and sedation-dentistry practices, covering controlled-substance receipts, administration, waste, counts, losses, and disposal.

A free set of mortgage calculators for comparing payments, affordability, refinancing, PMI, closing costs and other loan decisions.

A browser-based packaging tool for generating dielines, designing box artwork, previewing folds in 3D, and exporting files for production.

A browser-based toolkit for combining, editing, converting, repairing, signing, and otherwise working with PDFs.

FootClassic offers seven free football quiz games in the browser, including player Wordle, football tic-tac-toe, penalties and a club-linking challenge.

FotoApta turns a phone portrait into a 3×4 photo or other document-photo format, with options for printing or downloading.

A free, no-account app for workers who suspect they may be getting managed out, with a self-check, private log, and state-specific workplace guidance.

An event-operations service for live embroidery and customization booths, combining QR ordering, inventory, payments, production queues, and pickup alerts.

A browser-based tool for inspecting and removing embedded metadata from photos.

Mutuo analyzes one-to-one WhatsApp, Instagram, or Messenger chats and summarizes patterns such as who starts conversations, replies faster, asks questions, and suggests plans.

A browser-based appraisal workflow for UAD 3.6 that says it gathers property details, fills in comparable sales, and checks reports before signing.

A Taiwan-focused pet-care guide combining practical advice for emergencies and recovery with an animal-hospital directory, brand notes, and everyday care articles.

A browser-based simulator interface for exploring how Earth-observation optics, detectors, and acquisition settings affect an image.

A free tool for turning JPG and PNG images into editable SVG, EPS, PDF, PNG, or DXF files, with modes for cutting and numbered coloring pages.

PeaceLingo records meetings and creates a summary in the language spoken and in the user’s language, then emails both versions.

A searchable catalog for checking Linux compatibility, supported features, and device-specific setup across mice, keyboards, adapters, and more.

An iPhone app that says it uses on-device pose detection to time surfers’ pop-ups and show rep-by-rep replays.

A searchable reference connecting power tools, batteries, chargers, manufacturers, and battery platforms by model number.

A browser-based player and progress tracker for the Dragnet radio archive, with streaming and support for listeners’ own recording ZIPs.

A scanned-record translation workflow that extracts text, drafts a translation, and links each line to its location on the source page for review.

A paid research service that gives small US candle and home-fragrance brands ranked lists of independent shops carrying complementary brands, but not their own.

A comparison directory for Shopify A/B-testing apps that adjusts listed prices to a merchant’s traffic, orders, and revenue.

A collection of free calculators, charts, pattern generators, guides, and printables for quilting, crochet, knitting, and needlepoint.

Tinkerly presents an AI-assisted way to design a physical project, inspect it in 3D, and order the parts with step-by-step build instructions.

A browser-based editor turns text into animated, interactive messages you can share, turn into puzzles, or embed on a webpage.

A free WordPress analytics plugin that imports past statistics and connects post-level search data with visits from AI assistants.

A free browser extension and on-page calculator that compare Adopt Me! pet trades and label them WIN, FAIR, or LOSE.

A tool for bandmates to check proposed names against music catalogs, share a shortlist, and vote using ranked choice.

A Batam travel directory for finding places to eat, stay, and explore, with filters and sample trip plans.

BestSwell presents hourly surf forecasts for beaches around the UK and Ireland, with wave, wind, and forecast-quality details.

An unofficial planner for building a Busan International Film Festival itinerary, with screening times, venue travel estimates, and seat-availability alerts.

A Chinese-language reference site for Chinese businesses setting up factories in Thailand, with legal comparisons, practical guides, Q&A, and tax and payroll calculators.

A browser-based connection checker measures speed and latency, checks routes to popular sites and game regions, and turns the results into shareable lag evidence.

A free, no-login workspace for copying special characters, transforming English text, and assembling decorated sentences.

A browser-based calculator that turns room measurements and flooring choices into estimated quantities and a package-rounded shopping list.

BDB presents camera-calibration boards, desktop software, online generators and calculators, plus automation systems for repeatable calibration work.

A free, open-source app for organizing temple trips, camps, classes, and other activities in a church ward or branch.

Certified Manufacturers lets visitors search and browse supplement manufacturers by certification, dosage form, and country.

CheaperDirectBooking lists European hotels whose own websites are usually cheaper than Booking.com for comparable stays.

A browser-based tool for asking questions about BIM models, drawing sets, and cost tables, with answers linked to source elements or sheets.

A free Hebrew calendar tool for calculating dates and day/night periods relevant to halachic menstrual-cycle observance.

A free macOS dictation app that transcribes speech on the Mac and pastes formatted text wherever the cursor is.

A live-scoring tool for cross-country events, where fence judges enter rider results on their phones and organizers see them in a results matrix.

A file-format reference and a set of tools for inspecting, checking, and converting files.

ColdLatch presents a monitoring and QA workflow for temperature-controlled storage and shipments, linking excursions to signed decisions and stock blocks in SAP.

A Windows desktop and command-line crawler that says it audits entire websites for accessibility and SEO, then groups repeated problems into fixes.

A browser-based tool that finds and masks personal data in Turkish text before it is shared.

An interactive 3D reference shows where parts and shim packs sit in a Dana 44-type rear axle, and how four setup settings relate.

A browser-based planner for rectangular sheet cuts, with PDF, JSON, and CSV exports.

A set of free tools for calculating freight density and estimating density-based LTL freight class from shipment dimensions and weight.

A free calculator pairs renters’ deposit details with state-by-state rules on deposit caps, return deadlines, and interest.

A browser-based collection of 22 dermatology scoring calculators for residents and specialists.

A Spanish-language site for creating and downloading memorial photos, notices, invitations, keepsakes, booklets, and posters.

A month-by-month dive and snorkel guide combining sea conditions, seasonal wildlife, mapped sites, and comparisons of dive operators and prices.

A browser-based tool for extracting text from PDFs and images by marking fields, saving reusable templates, and applying them to batches of documents.

Do I Need a Visa? lets South African passport holders check entry requirements and permitted stays across 198 destinations.

DrummerUp lets drummers write or import practice patterns, play them through a MIDI drum kit or simulator, and review timing scores and analysis.

A focused calculator and reference for comparing weapon poise damage with Elden Ring enemies and bosses.

An independent guide to state emissions-testing requirements, with inspection statistics for New York stations.

Eretzon presents a tool that takes an address or parcel ID and returns zoning rules, a buildable envelope, a cost range, and related feasibility numbers—or explains why it cannot.

A read-only Solana privacy mirror that shows the public wallet details a stranger could inspect, from holdings and major moves to activity times and neighboring addresses.

A Fairbanks aurora-tour guide compares 23 listed options by price, time under dark skies, solo-booking availability, and practical trade-offs.

A workspace for Amazon.com FBM sellers to review refunded orders, identify possible recovery routes, and prepare claim materials.

A free, no-signup calculator uses U.S. and Canadian diesel-price data to help truckers work out fuel surcharges from their contract terms.

A Japanese-language and multilingual calendar consolidates upcoming capsule-toy and candy-toy releases from nine manufacturers, organized by month and maker.

A browser-based suite of device tests, from dead pixels and refresh rate to speaker channels and webcam preview.

A browser-based tool that turns Gemini Gem instructions into a SKILL.md file and checks existing files for format and folder-name issues.

A task-linked Pomodoro timer set on a 3D farm, where Hasan Dede grows tomatoes while you work.

A beta app for logging tools and gear lent to friends, then drafting a reminder when it’s due back.

A town-by-town comparison of how the available internet providers change when households switch from DSL to fiber in 7,877 German locations.

A Windows app that finds golf-round moments for review and assembles selected clips into a highlight MP4, without uploading the footage.

A field-sales tool that maps hail activity, scores houses, and gives roofing reps door-knocking routes.

HouseByMonth builds a 12-month home maintenance plan from your ZIP code and the equipment and systems in your home.

A Turkish HR and payroll reference combining legal updates, dated statutory parameters, practical guides, and calculators.

A home-winemaking guide and Apple app for tracking wine, mead, and cider batches.

A Hebrew-language tool estimates restaurant tips across 120 destinations, with options for the bill, party size, and whether a service charge is already included.

A weekly, region-based email listing future California childcare centers for playground and surfacing companies.

A project-fee tracking tool for multidisciplinary design teams working to RIBA stages, combining deliverables, planned and burned hours, and a month-ahead view of team commitments.

A digital atlas and gazetteer that presents Byzantine places, borders, and historical records through a time-based map.

A Lineage 2 Interlude database and set of planning tools recalculated for a player’s server rates.

A browser-based PDF tool for cropping and arranging shipping labels from Meesho, Flipkart, Amazon, and Snapdeal.

A running workout generator that derives VDOT pace zones from a recent race result and builds sessions with wearable export options.

A public tracker that samples new Solana token launches and charts how long they remain above their launch value.

A structured legal guide pairs everyday topics with checklists, browser-based calculators, and a seven-stage path from understanding an issue to enforcing a resolution.

Layr presents an ingredient-label checker that matches declared ingredients against public authority records and shows where each finding comes from.

A browser-based solar designer for modeling South African roofs, panel output, batteries, and client reports.

A hotel-focused service that says it compares laundry invoices with contract rates, delivery records, and linen counts, then drafts vendor dispute letters.

Paste a public Solana wallet address to see wallets connected to it, ranked by on-chain signals and supporting transactions.

A pricing and workload tool for comparing the cost of running LLMs across cloud providers, model APIs, and GPU setups.

ImageClone compares a Solana token’s logo—or an image you provide—with archived launch art, listing matching and near-matching images in chronological order.

A free, no-registration set of 14 browser-based calculators for woodworking, CNC and laser cutting, materials, and 3D printing.

A free set of interactive fretboard and chord resources for guitar, bouzouki, baglama, and bass, focused on maqams and quarter tones.

Restora describes job-management software for restoration companies, connecting field documentation and drying logs to office coordination and carrier-ready reports.

A service for locking letters, event messages, photos, videos, or group predictions until a chosen date and time.

A Mac app, AUv3 plugin, and iPad remote for controlling MainStage, plugins, and keyboards during live performance.

Mintlyo presents a stock-taking workflow that scans trading cards on a phone, lets shops review inventory in a dashboard, and prepares a file to import into a marketplace.

Miran Fann presents a GPU-rendered motion-graphics tool directed through Claude Code or Codex, from a written brief to an editable project and finished film.

An Android app for encrypting photos, videos, and other files, presented with an in-browser simulation of its vault workflow.

A guitar-tab editor for macOS DAW plugins and the browser, with playback for bends, slides, vibrato, harmonics and more.

A free toolkit for ATV and UTV owners to compare measurements and plan tires, trailers, towing, payload, fuel, and electrical use.

A browser-based viewer for obsolete documents, archives, media, and disk-image formats.

A free, no-account tool for comparing a software vendor’s VPAT with accessibility standards and identifying reported gaps.

Orrerian offers a Taiwan-focused ERP system for inventory, accounting, invoices, tax-filing materials, and bank reconciliation.

A map and toolkit for Turkish wind and solar project development, combining EPDK site records with filters, spatial layers, and cost calculators.

A free Mac utility for cleaning up Google Photos downloads and checking, tidying, or moving Apple Photos libraries.

A website feedback tool anchors threaded comments to page elements, then lets teams pass that context to a coding agent.

A free, open-source Chrome extension shades comparable table values to show which are better or worse.

A club-app studio for amateur hockey teams, combining team operations with club-branded print and social materials.

Search a person’s name or a CryptoPunk number to see publicly sourced claims about who holds which punks, alongside current on-chain ownership.

A public scoreboard bringing Queens steel-tip dart league standings, player statistics, and cross-league rankings together.

Recess offers annual IRS and Illinois filing preparation for Illinois PTOs, booster clubs, and youth sports leagues, alongside a tool for checking due dates.

RFP Finder lists open federal, state, county, city, and school-district bid opportunities, with search and deadline-based filters.

A free, registration-free browser metronome with voice counts, practice modes, adjustable sounds, and shareable settings.

A browser-based model for testing a fictional company’s revenue, hiring, working capital, cash, and debt across a fixed January–December 2027 forecast.

An unofficial search tool for finding scenes and skills in the Sakukoi mobile game.

サクッとJIS is a free reference and calculator for mechanical-design and piping dimensions, including bolts, steel pipe, threads, and O-rings.

An Arabic-language editor for Yamaha YEP and PPF expansion packs, with controls for uploading, auditioning, rearranging, editing samples, and exporting YEP files.

ScaffPilot is scaffold-design software for building 3D scaffolds and weather-protection roofs on IFC/BIM models, producing material lists and structural calculations.

An early-access tool for roofing contractors that compares carrier estimates with measurement reports and drafts a supplement email for review.

A browser-based screen recorder and editor that proposes automatic zooms, adds visual effects, and exports video locally.

SealCopy describes a service that sends confidential video as individually marked copies, so a leaked copy can be traced to its recipient.

A searchable directory of Seoul cultural, education and sports programs, filterable by district, audience, price and application status.

A browser-based editor for designing animated gradients, exporting them as images or video, and embedding them on websites.

A browser-based editor for covering sensitive details in screenshots before exporting a fresh PNG.

A drink-journaling app that turns photos and quick entries into a visual calendar, with no account required and records kept on the phone.

A browser tool for looping YouTube segments, slowing playback, checking pitch, and connecting a MIDI keyboard.

A riichi mahjong companion for entering or scanning a winning hand and calculating its score and payment breakdown.

An interactive simulator compares modeled ground and orbital routes for a prompt, including response delay, energy use, and cooling-water use.

A free calculator for Indonesian marketplace sellers that estimates net profit after platform fees and other per-order costs.

A Korean-language Escape from Tarkov hub gathers player tools, guides, updates, and community features.

A free I Ching reading experience pairs a six-line coin-casting workflow with Chinese text, an English translation, and optional Guided Edition access.

A free reference site with playable fingering charts, transposition information, and printable PDFs for 17 woodwind and brass instruments.

Tolerex turns CNC part inquiries into costed quotes, accounting for material, machine time, finishing and quantity breaks.

A suite of about 300 free tools for files, PDFs, images, and text, presented as running in your browser and working offline.

Tracking Construction presents a phone-based crew timekeeping and job-costing tool, with approvals, receipt parsing, and subcontractor paperwork checks.

A running audit tracks Solana tokens appearing on public trending lists and compares their prices with the price at entry.

A browser-based tool for arranging labels, cards, books, and catalogs into print-ready layouts.