Useful Tools

An interactive clock compares billionaire wealth accumulation with wages, everyday purchases, and household costs.

An interactive globe maps political territory, battles, and wars across a historical timeline.

A searchable archive records vessel passages through seven Great Lakes chokepoints, using public AIS tracks.

A browser-based tool that analyzes a cycling FIT file for climbs, power, speed, weight, and estimated drag area.

A free lookup built from EPA certification data shows how certified efficiency ratings vary across indoor-and-outdoor heat-pump pairings.

A browser extension that rebuilds PDFs as navigable HTML, with headings, lists, tables and links.

Nautivia helps skippers find nearby fuel, moorings, shelter, food and other boating needs using their location or a map-selected spot.

A browser-based pressure interpreter sits alongside a practical guide to reading a home barometer, identifying clouds, and keeping weather observations.

A free online tool for comparing US Chess players, finding tournaments, estimating ratings, and analysing Chess.com or Lichess games.

NASSRAM lets you choose a RAM capacity, memory type, currency, and purchase date to see its displayed value today, alongside a bitcoin comparison.

A downloadable dataset of upcoming industrial, infrastructure, and commercial projects across India, offered in Excel, CSV, and GeoJSON.

A houseplant care tracker that builds schedules from plant species, pot details, room light, season, and local weather.

An interactive map lets you move a place’s outline around the world and resizes it to represent the same population at each location.

A student-government workspace for high school ASBs, bringing officers, tasks, committees, meetings and club business into one place.

A South Jersey weather site pairs Millville airport conditions and National Weather Service forecasts with an AI-assisted tool for asking about weather at a specific U.S. location.

A free image-inspection tool that checks C2PA credentials, AI-related metadata, and EXIF/XMP inconsistencies.

Dose Radar compares supplement label amounts with doses used in human research, and keeps experimental protocols in a separate lane.

An interactive map and search tool for comparing Hungarian secondary-school programmes using official admissions data.

A free patient resource for searching Florida medical cannabis products, comparing prices, and finding linked lab reports.

A free macOS desktop cat wanders across windows and the Dock, then prompts you to take breaks; a cat-voiced diary app for iPhone is in development.

A free browser-based toolkit for reading email files, extracting attachments, inspecting headers, and producing PDFs.

A task-based knot reference pairs a three-question finder with illustrated tying plates and explanations of why knots hold or fail.

A US guide to plug-in solar that combines a state rules tracker, payback calculator, buying guide, and practical explainers.

A seasonal orchard guide covers fruit-tree care and offers a harvest-window calculator.

A beginner-friendly music-making playground where you build beats from visible blocks and can ask a co-producer to explain its edits.

A state-by-state reference for pharmacy maximum allowable cost (MAC) appeal deadlines, disclosure duties, and statutory citations.

A Japanese database compares industrial-waste business permit procedures across prefectures and designated cities, with tools for deadlines and permit requirements.

A browser-based suite for compressing, converting, redacting and preparing documents for AI, with local tools for developer workflows.

An interactive companion for practical etiquette questions, with browsable entries linked to pages in a paperback guide.

The site lists treks worldwide and compares operators by quoted price plus costs left outside the package, linking figures to their sources.

A daily index of Taiwan book rankings, recent releases, and new-book announcements, combining data from major booksellers.

An open-source VPN client for Android, Windows, and Linux that combines eight connection engines and can test subscribed servers for the fastest responsive option.

WildEcho presents a field tool for recording or importing short wildlife sounds and identifying candidate species on-device.

A family keepsake service for personalized letters from Santa, the Tooth Fairy, and 28 other folklore figures, alongside free printables and parent-facing guides.

MetRamzi pairs an interactive atmospheric-condition explorer with research on snow and winter cyclones across the Levant.

A free, browser-based collection of pharmaceutical technology calculators, dissolution-analysis tools, and practical guides.

A car-data lookup and comparison site covering owner complaints, recalls, and estimated fuel costs across model years.

A kintone backup and recovery product that describes daily snapshots, field-level comparisons, and recovery for records, attachments, comments, and app settings.

A player-built resource for Russian Fishing 4, with fishing-spot reports, game guides, calculators, and a personal catch log.

A free, no-account browser calculator draws a rectangular deck’s framing and produces span checks and a shopping list.

A free browser tool for filling or checking French administrative PDF forms without uploading them or creating an account.

MyBizCalendar uses a few business details to calculate Malaysian government deadlines for the next 12 months and export them to a calendar.

An open-source iPhone and iPad app in beta that organizes shared links, screenshots, videos, and notes, then helps bring them back later.

Interactive, to-scale room planners show whether furniture fits—and whether there’s still room to use it.

A beta analyzer turns Salesforce Apex debug logs into a readable sequence of triggers, flows, rules, classes, and transaction findings inside Google Sheets.

A browser-based maker converts a photo into an editable cross-stitch pattern you can print.

A Greek-language bill splitter that accounts for tips, separate drink costs, and different payment methods.

An interactive studio for testing colors, patterns, and designs on digital nutcrackers.

A small shelf of browser-based tools, with a mind-mapping app live and two more tools named but not built.

Artfkt is a Mac app for making posters, cover art, and digital collages with layered images, editable text, and customizable effects.

차똑 presents a QR sticker that lets someone contact a parked car’s owner without seeing either person’s phone number.

Contralto is a Mac app for Windows users that remaps familiar shortcuts and settings, with options to undo the changes.

A Jira Cloud Gantt chart for coordinating two to six projects, with dependencies and schedule changes reviewed before they are applied.

A free, no-account tracker for sealed Pokémon TCG restocks and prices at New Zealand stores.

A monitoring tool for cron jobs, backups, n8n workflows, and GitHub Actions that alerts on late check-ins or output counts outside an expected range.

Glassware Labs describes an app for Canvas that scans course materials, drafts accessibility repairs, and waits for instructor approval before publishing them.

A free browser-based tool for converting iPhone HEIC/HEIF photos to JPEG for Japanese My Number card applications.

A painting-discovery tool that turns artworks into prompts for photography, with filters, creative exercises, and private notes.

A free, open-source desktop diagnostic for Linux, macOS, and Windows that explains hardware condition, scores workloads, and suggests whether to repair, upgrade, or keep a machine.

A free Japanese collection of 11 calculators for accounting, payroll, dates, and other routine office calculations.

Kriat Shema automates synagogue and household announcements using local halachic times, with controls available by phone as well as online.

A local surf-observation tool for recording conditions at Lacanau and consulting an indicative forecast.

Maap describes a free, browser-based home planner for drawing rooms to scale, placing furniture, and mapping electrical points before an interior designer takes over.

A browser-based canvas where people can draw together on one persistent, expanding surface.

An Argentine recipe catalog for one or two, with ingredient matching, portion adjustment, and a shopping list that stays on your device.

An explorer of US baby-name records, with yearly rankings and charts tracking names’ rises, peaks, comebacks, and declines.

A no-account planner and set of guides for helping parents with practical online-safety tasks.

A free Mac app for dictating Japanese into text fields and carrying out selected Mac actions by voice.

A macOS app that adds a logo, frame, nameplate, and optional background blur to your webcam, then offers the result as a camera for video-call apps.

UNDUE uses a hospital bill, state, and household income to draft letters for requesting financial assistance and other billing remedies.

A startup simulator gives founders 200 weeks to make constrained decisions and then reviews what happened.

A French tender-monitoring service that matches public contracts to a company’s activity and area, then sends a short daily email.

A Russian-language search tool for men’s clothes on Vinted, with translated listings and garment measurements in centimeters.

A free tool turns event details into deliberately wonky, hand-drawn-style posters that can be downloaded as PNGs.

Hwefo answers forwarded calls, takes a message, and sends the caller’s details to WhatsApp.

A Japanese walking-route map compares loop walks by distance, estimated time, steps, and their equivalent in days of Inō Tadataka’s surveying.

WaveLocus presents browser-based tests for checking audio output, channel routing, microphones, headphones, and more.

An app helps people with an existing meal plan adapt it to restaurants, travel, and other days outside their routine.

A Quarter Horse yearling valuation tool that estimates prices, shows comparable sales and price drivers, and keeps buyers’ notes and shortlists available offline.

A browser-based workbench for comparing an original Amazon Bulk spreadsheet with an AI-edited version before upload.

A browser-based internet radio player for finding stations by search, country, or genre—or landing on one at random.

A beta companion suite for mapping zones, reviewing fights, tracking guilds, and comparing crafting and market data in Albion Online.

A public lookup for FCC antenna structure registrations, searchable by ASR number, owner, location, or other record details.

AntiREB presents a car device and companion app that claim to keep navigation apps supplied with a location during GPS jamming or spoofing.

A browsable collection of 3840 × 2160 desktop wallpapers made from public-domain paintings sourced through museum open-access programmes.

BASIN runs plain-language Arc trade rules against recorded launches, then lets users seal predictions and compare them with later outcomes.

A browser-based workflow that analyzes a video master, configures and encodes a cinema DCP, then offers verification and a preview.

Bekindar offers interactive games for toya, anniversaries and corporate events, letting guests join from their phones by scanning a QR code.

A bilingual scoring interface for Beyblade matches, with tournament brackets, match controls, and replay features.

A browser-based Python linter that flags machine-like writing patterns and marks each finding with its rule and line number.

A copier for blank-looking Unicode characters, with controls for character type and quantity.

A browser-based dog pregnancy estimator that turns a mating or veterinarian-identified ovulation date into an estimated due date and planning window.

Software for cam performers that brings chats, tips, menus, goals and stats from Chaturbate, Stripchat, CamSoda and Joystick into one workflow.

A free Windows desktop client for following Twitch chats, with moderation controls, multiple emote providers, and tabs or splits for watching several chats at once.

An independent tracker for Washington’s Clean Buildings Performance Standard and Seattle BEPS, with building lookup, deadlines, penalties, incentives, and city coverage.

A planning workspace for accredited CME providers, spanning evidence-backed gap discovery, faculty review, activity planning, and outcomes reporting.

Collector Catalog organizes collections with searchable records, photographs, provenance, custom fields, and purchase and estimated values.

It offers a free hen-count planner and coop plans with lumber cut lists, sheet layouts, and assembly sequences sized to a chosen flock.

A free, browser-based calculator estimates decking boards, screws, joists, and cost for a rectangular DIY deck.

A free Windows app translates Dota 2 chat between English and Russian, Spanish, or Chinese.

A free Mac menu bar app for ejecting CFexpress, SD, and XQD cards, with optional hidden-file cleanup and verified media imports.

Mostrador describes inventory and sales software for small businesses that buy goods in Lima and sell them through WhatsApp.

An unofficial, searchable database of EverQuest Legends spells, effects, class lists, upgrades, and related item data.

EverRegel presents a dispatch, billing, and payment workflow for businesses that want to coordinate local deliveries from WhatsApp.

An iPhone toolkit for solo executive-protection operators to plan movements, build advance reports, keep personnel contacts, and share materials.

An iOS Safari extension for marking and revisiting fanfiction on Archive of Our Own and FanFiction.net.

A price-comparison tool for Japanese figures, matching listings across retailers and showing estimated delivered prices for a selected country.

FleetEye describes an AI back office for Indian fleet owners that turns photographed register pages into truck-level costs, outstanding balances and suggested quote floors.

Flywheel analyzes how a YouTube video connects attention to a creator’s brand, product, and business, then suggests what to fix.

A public tracker organizes investment funds facing liquidation, payment default, trading restrictions, or changed redemption terms.

The site reads Fortnite replay files and presents match reports with zone, fight, placement, and damage details, plus an AI coach for follow-up questions.

A family coordination page for a group’s October 10, 2026 trip to Halloween Horror Nights Orlando, with check-ins, event information, a park map, and saved favorites.

A deadline tracker and set of compliance tools for companies using AI across the EU, Poland, South Korea, and US states.

A free calculator estimates how much Klaviyo senders may be paying for inactive profiles on their lists.

A Mac app that lets you select screen content, files, or text and ask an AI-powered question about it.

A browser tool for reducing GIF file size, with controls for target size, scale, frame rate, and color quality.

Glass Cut Patterns offers panel-sized stained-glass designs, a free Pattern Sizer, and downloadable cutting materials.

A browser-based editor for making branded “I’m attending” badges that event guests can share.

A UK workforce-law calculator models which workers may qualify for guaranteed-hours contracts and estimates employer costs under different possible rules.

A letter-writing companion combines advice on tone, paper, ink and postage with a draft builder.

A Rishon LeZion property research tool that organizes appraiser decisions, planning records and registration clues by block and parcel.

A browser-based tracker of fund holdings and quarterly portfolio changes drawn from SEC filings.

A free suite of homebrewing calculators for gravity, alcohol, bitterness, mashing, and carbonation, with formulas and sources identified.

A browser tool for faceters that opens gem-cut designs and pairs a rendered stone with step-by-step cutting guidance.

A collection of small web apps for tracking community money, small-business activity, school fees and volunteer rotas.

A free job and talent exchange for IBM i, AS/400, and iSeries candidates and employers.

A native menu-bar app for screenshots, short screen recordings, and image annotation on macOS.

A community locator and review guide for finding Italian beef spots around the USA.

A free, no-sign-up generator presents playful receipts for parts of life such as dating, work, friendships, and group chats.

Jiyomi lets you look up Japanese words by their writing, reading, romaji, or French meaning, and offers a tool for breaking sentences into words.

A Japanese-language finder for Korean dramas that lets visitors search by title or filter by story elements and mood.

Kinetic equips shooting lanes with cameras that capture sessions, create AI comic renders, and let guests preview and buy their media through a QR-linked portal.

A private tracker for logging cluster-headache attacks alongside pressure conditions adjusted for the user’s elevation.

A collection of free browser tools for marketplace sellers, including shipping-label croppers, PDF utilities, calculators, and print generators.

A no-account collection of 34 earthwork calculators for grade, quantities, hauling, placement, production, and cost.

A local-first network video recorder for IP cameras, with live viewing, playback, storage controls, and a local API.

A browser-based GIF and sticker maker that builds to the file, dimension, format, and frame limits of a selected platform.

A macOS storage-cleanup app that explains System Data in plain language and lets users choose what to remove.

A free browser tool for cropping a Japanese driver’s-license application photo and preparing JPEG and A4 print outputs.

A browser-based review tool that lets clients leave comments directly on uploaded 3D models, without creating an account or installing software.

A desktop-manufacturing research dashboard that pairs design-download activity with marketplace signals to assess product opportunities and print costs.

A Mac app uses the Mac’s camera and an iPhone behind you to show front and back views while you style your hair.

A free Counter-Strike 2 toolkit pairing grenade line-ups from pro-match demos with aim, config, and trade-up tools.

A Superflex PPR dynasty ranking board that estimates players’ remaining fantasy production by comparing their career arcs with historical NFL players.

NineHound 汇集全球医疗器械、设备与耗材采购信息，并把招标公告整理成供供应商进一步核查的机会线索。

A block-level rain forecast for the next 90 minutes that displays uncertainty and says it scores each prediction against observed rainfall.

A Florida State football hub tracking season predictions from beat writers, podcasters, and fans, alongside schedules and other fan tools.

A browser-based tracker for gig work, freelance income, side jobs, spending, and recurring charges.

An iPhone app that scans prescription bags, pharmacy labels, or paper prescriptions, then builds dose reminders and a taken-or-missed history.

Orbilas combines satellite imagery and forestry records to rank stands for seasonal fire-prevention checks, with results presented for QGIS.

Orbit Calendar offers subscribable calendar feeds for moon phases, void-of-course periods, planetary sign changes, stations, and exact aspects.

Outgym is an upcoming iPhone workout app that counts reps against movement standards, gives coaching cues, and turns a set into a video.

A receipt-based grocery-price comparison that helps shoppers compare nearby supermarkets and assemble cheaper baskets.

A Québec golf finder that compares nearby tee times and course information, with bookings completed through clubs or their partners.

A free, open-source macOS utility that adds per-Space Dock behavior, local app launching, and desktop-specific window switching while leaving Spaces and Mission Control in place.

A free set of printable printer checks covers colour, grayscale, nozzle condition, alignment and text sharpness, with Letter and A4 options.

The tool reads a WooCommerce shop and builds Google Ads search campaigns with bids capped according to each product’s margin.

A browser-based converter turns bank transaction files into QBO files for QuickBooks Desktop, with transaction and account details to review along the way.

A locally installed online pickup-ordering system for independent restaurants, connecting a restaurant’s ordering page to its kitchen screen, printer, and existing POS.

A private-beta Mac app for switching, mixing, recording, captioning, and streaming live productions.

A no-account recall-checking service that says it compares product descriptions and vehicle VINs with U.S. federal records, returning notices and related details.

RishtaPatra makes one-page marriage biodatas in Indian languages, using a guided form or details imported from a resume, old biodata, or WhatsApp message.

A collection of free, no-signup calculators and planners for Australian FIFO and shift workers, covering rosters, pay, tax and household costs.

ScopeRecord is report software for camera scope inspections, starting with sewer laterals.

The tool takes an item name and photos, then presents studio-lit images alongside a live range of eBay asking prices for comparable listings.

Seshat offers ERPNext with an MCP layer for coding agents to handle bookkeeping, either on your own hardware or through managed cloud hosting.

A solo maker sells spreadsheet, Notion, and Python tools for automating freelance SES invoicing, timesheets, and project management.

A yarn-substitution calculator estimates how many skeins a pattern needs when you switch to another yarn.

Sleuth uses embedded GPS for an exact photo location, or a vision model for a labeled country or region estimate when GPS is absent.

A free browser-based video toolbox that compresses clips to a chosen file size and also offers conversion, trimming, resizing, GIF, and audio tools.

Speed Comp is an iPhone and Android app that uses GPS speed to adjust Bluetooth audio volume for rides.

Sridu is a steel-tip darts scorer that uses up to four USB cameras and runs in a browser, with options to play online or host it yourself.

A weekly lead service that matches newly granted UK permits and licences to companies, then sorts them into trade categories.

An inventory tool for small makers tracking purchased components across Shopify, Etsy, and eBay.

A Windows app that overlays translated subtitles on live streams and local videos, using local speech recognition and translation, cloud APIs, or a mix.

A free weather app presents the same day in an upbeat SUNNY view and a dryly humorous REALITY view.

A browser-based checker compares two supplier CSV or JSON files by SKU and produces a report of product, price, and stock changes.

A browser-based tool for preparing SD3 entry files for unattached swimmers from a swim meet package.

A scale-based planner for freshwater planted tanks and saltwater reefs, with starter layouts and species guides.

A free web app for finding bars in Spain, comparing beer prices, and recording what you drank.

FitCheck offers outfit feedback from a mirror selfie, with a browser-based tryout and a text-message version described as coming soon.

A browser-based boxing simulator lets visitors set up matchups between boxers and adjust fight conditions before simulating a result.

A directory of companies advertising on niche podcasts, organized across 14 trades and linked to specific shows and episodes.

An Android app that limits selected apps and, when you hit a limit, shows a reminder built from your own goal, reason, and optional photo.

A Mac and iPhone reading aid that speaks text aloud while highlighting each word.

A client review tool that lets website builders collect pinned comments, discuss changes in place, and track page approvals.

Assay analyzes token launches on Robinhood Chain’s pons v2, presenting the curve, trading activity, holders, and deployer history with links to on-chain evidence.

VendingMachineGame.com models the operational and financial decisions involved in building and running a vending route.

A set of calculators and reference pages for Army fitness scoring, VA disability ratings and compensation, and Basic Allowance for Housing.

A research hub for country and Americana artists, their industry connections, audience signals, and music-business announcements.

Worth After 50 offers divorce-settlement and Social Security calculators for women weighing retirement decisions after 50.

A paid pre-purchase tool that uses a vehicle’s VIN to summarize federal recalls, complaints, and bulletins into failure patterns and estimated repair costs.

AVA says it measures what AI assistants tell people about an organisation, checks those answers against the organisation’s own website, and creates timestamped records of the results.

A free cycling route planner for road, gravel, e-bike and leisure rides, with route comparisons, weather preferences and downloadable navigation files.

A map for tracking places visited and planned, sorting them by best season, and laying dates around a circular year calendar.

A Zambia-built service lets car-hire businesses check clients’ rental conduct and manage fleets, bookings, invoices and payments.

A Southeast Asia voyage-planning estimator combines route, cargo, vessel and cost inputs with market signals to produce a freight planning range.

A searchable and browsable reference for U.S. HTS codes, duty rates, country provisions, trade programs, and temporary suspensions.

A reference tool compares key, ciphertext, and signature sizes for post-quantum algorithms against classical cryptography.

A searchable directory and map for halal and Zabiha restaurants across Chicago and its suburbs.

A free, browser-based classroom kit for picking names, making random groups, and running timers and a stopwatch.

A browser-based PDF tool for removing watermark objects, covering marks baked into page content, and rebuilding files locally.