Useful Tools

An interactive, part-by-part 3D reconstruction of a 1964 Lambretta Li 150 Special, with mechanism views and workshop tools.

A Japanese-language guide to sorting a deceased relative’s belongings and dealing with the family home, with interactive sorting and cost-estimate tools.

A reference for European Latin-script diacritics, with a browser-based checker that tests what a font supports.

Cash Tone estimates take-home pay for 24/48 firefighters and helps them plan overtime, budgets, and leave balances.

A free set of lathe calculators for machinists and woodturners, covering speeds and feeds, threading, cutting plans, and related shop math.

An interactive 3D globe layers satellite clouds, wind, temperatures for about 230 cities, and the International Space Station’s position.

Mixwell presents a guided oil-painting workflow built around your own photo and paint tubes, with steps for planning the composition and mixing colors.

RFscape is a browser-based tool for planning radio links, repeater coverage, and networks over real terrain.

A church booklet tool for assembling, printing and archiving orders of service, from source material through the Sunday handout.

A free household emergency handbook for Ireland, with 16 printable volumes, fridge-ready cards, and an offline app.

Shop software for police, fire, EMS, and fleet upfitters that connects quotes, parts inventory, job-floor work, and QuickBooks.

An interactive comparison of email marketing, help-desk, password-manager and accounting software, with prices adjusted to team or usage size and notes on data location.

An interactive world map lets readers explore natural disasters and slower-moving environmental changes by place, then compare current conditions with earlier years.

A paid Windows desktop tool that estimates battery power density, discharge rate, and hover-time limits from aircraft parameters.

An ecosystem map of grants, programs, investors and networks backing women's health companies in Australia and Aotearoa New Zealand.

A free, self-hosted logbook for tracking vehicle fuel, maintenance, service records, and costs.

A free Singapore housing site estimates ballot chances and tracks HDB application rates, with financing calculators and practical guides for flat buyers.

A free NYC Citi Bike map pairs live dock counts with an estimate of whether to wait for a space or ride to another station.

An open-source Linux and Steam Deck manager for Cyberpunk 2077 mods, built around layered installs that leave the game directory untouched.

Independent research and browser-based tools help publishers and other content owners assess AI licensing proposals.

A browser-based 3D globe brings together flights, ships, public cameras, weather, satellites, infrastructure, and world-event reports.

An iPhone app that maps live subway trains and turns logged rides and station visits into pieces for a growing virtual railway.

Mikana presents a coordination tool for First Nations health centres to schedule medical rides, send trip details to community drivers, and compile mileage.

A practice market recreates the feel of trading futures, stocks, commodities, and crypto without real money.

A browser-based editor for opening and changing Microsoft Publisher (.pub) files, with options to save them in other formats.

An independent collection of small, free Windows tools for games, keyboards, and Twitch streaming.

A cattle-auction tracker that ranks nearby lots by price per arroba, checks animal color, and sends updates through WhatsApp.

Saltwater Malta maps dive sites, kayak routes, snorkelling spots and sea caves across Malta, Gozo and Comino, with coastal forecasts and trip-planning features.

Singularity maps scientific fields and forecasts which research methods may cross into new areas.

A Mac utility that names a likely cause of sluggish performance and suggests one fix at a time.

A vendor-attestation register for small IT shops that extracts details from SOC 2 reports and tracks when coverage needs reassessment.

A Mac utility that opens an individual app window from another Mac as a local window, with keyboard and mouse input.

A browser-based hockey-goalie video workbench for marking rink references, measuring positioning, and annotating plays.

A free, open-source desktop CAD app for mechanical engineers that combines AI-generated parts with conventional editing and shop-oriented outputs.

A free, vendor-agnostic lookup for aircraft parts, FAA-approved PMA alternates, and airworthiness directives.

A browser-based tool that turns images, text, shared links, or existing pattern screenshots into editable bead designs.

An interactive visualizer for 3D-printer bed measurements, with 3D surfaces, heatmaps, comparisons, and exports.

A browser-based tool that converts supported 2D DWG and DXF drawings into a single fitted A4 landscape raster PDF.

A Cayman Islands dashboard for checking dive and boating conditions by zone, alongside weather, cruise-ship schedules, Bio Bay forecasts, and webcams.

A fixed-price service checks content-site pages against primary sources and assigns each one a decision: fix, investigate, leave alone, or reconsider.

A free, MIT-licensed macOS app that identifies developer-related storage and lets you review cleanup candidates before moving them to Trash.

Upload an IMDb ratings CSV or Letterboxd export to explore your film habits, compare ratings with crowd scores, and get recommendations.

A fishing map that combines sea temperature, currents, eddies, chlorophyll, water clarity and seabed information.

Tradio describes an iPhone app for face-to-face translation: each person speaks on their side of a shared phone, and the translation appears on the other side.

A fan-made GTA VI hub presenting launch-planning tools, Leonida guides, a sick-day-note generator, and source-labeled news.

A free, mobile-focused habit tracker pairs daily check-ins with a pixel-art companion, progress rewards, and optional AI features.

A searchable archive of YouTube talks, lectures, and documentaries recommended on Hacker News, with the comments behind those recommendations.

An iPhone and iPad app that turns a photo library into themed card sets and five-card packs to open and collect.

A guide to comparing 58 kimono rental shops in Tokyo and Kyoto, alongside 60 kimono-related events.

A free Pakistan-focused planner pairs age- and health-based screening schedules with symptom-to-test guidance and plain-language explanations of 46 lab tests.

A free reference site explains lawn and pest product re-entry rules for pets, citing EPA-accepted labels and related health sources.

A browser-based converter turns PNG, JPG, or WebP images into layered or single-color SVGs for vinyl cutters and lasers.

A Portuguese-language app for planning a baby’s room renovation, from measuring the room to tracking costs and scheduling work around the due date.

A solo studio’s portfolio of iPhone, iPad, and Mac apps for language practice, hotel searches, recording, and daily routines.

A Japanese-run hub linking six data-focused sites that compare Rakuten listings, from donation returns and seasonal reservations to product unit prices and hot-spring lodging.

A browser-based converter that turns an audio recording into an editable MIDI draft, with piano preview and download.

A Japanese guide to block-meat products where readers can change the relative weight of seven evaluation axes and see the rankings update.

A to-scale planner checks whether guitar pedals fit on a board and totals their power draw against compatible supplies.

PeptMass is described as free, offline software for calculating peptide masses, predicting fragment ions, and annotating experimental LC-HRMS/MS spectra.

KonduktoSWITCH gives live-event operators one place to cue and switch presentations, videos, PDFs, and web pages onto audience screens.

An open-source desktop tool for analyzing DIA-NN or Spectronaut tables, editing figures, building reports, and sharing interactive data viewers.

Saasflation tracks SaaS price changes, plan removals and limits, alongside company pricing pages and buyer-focused context.

A monthly comparison of Seoul skin-clinic prices, with treatment-by-treatment listings, first-visit deals and a clinic map.

Septic Service Map helps Tampa Bay residents find septic companies by service, area, and other filters, with business-stated registration, insurance, and pricing information.

A tool for DJs that turns Serato or rekordbox play history into an organized setlist to copy into an APRA AMCOS performance report.

A Spanish-language calculator estimates solar production, savings, and payback using a municipality, household consumption, panel setup, and local taxes.

A free collection of calculators for electrical work, networking, carpentry, and roofing, with formulas, assumptions, and source references.

A searchable, third-party index of Thai Revenue Department tax rulings, organized by document number, tax category, subject, and Revenue Code section.

A digital invitation and planning tool for Indian weddings that collects per-ceremony RSVPs and tracks vendor costs by event.

A browser-based music editor for changing a song’s speed, pitch, EQ, and effects, then exporting the result.

A browser-based ledger that combines WeChat and Alipay statements to summarize spending by period, category, merchant, and payment platform.

A Japanese system for consultation-support, home-care, and visiting-nurse providers uses recorded interviews to draft records, diagrams, plans, and billing files.

A documentation assistant for Ecuador’s rural-year clinicians that turns brief visit notes into PRAS-ready text and suggested CIE-10 codes.

A bilingual herd-records app for dairy farms, covering milk, medicine, breeding, and farm money for cows and buffaloes.

A browser-based PDF tool for filling and signing forms, combining scans, hiding private details and editing text—even on scanned pages.

Equami compares ways to send money from the US to 10 destinations, ranking providers by estimated amount received.

A free tool for comparing roofing or HVAC quotes with Nashville price data and cited cost guides.

IONLOGS presents a lab-operations product for recording bench rounds, tracing reagent lots, tracking column wear, and producing auditable reports.

A browser-based collection of creator tools for sketching layouts, making rough 3D forms, editing images, drawing, and playing small games.

A browser-based tool for turning SVGs or images into multicolor 3D-printable magnets, with adjustable cavities, dimensions, colors, and layer settings.

A browser-based Turkish and English tool that flags repeated or formulaic phrasing and explains why it marked each passage.

A free, filterable ranking of quantum computing, communication, and sensing companies by disclosed funding, with data organized by geography and technology.

An iPhone-based inspection tool for drilling and well-servicing rigs, with checklist entries, deficiency records, signatures, and reports.

TurboXML converts cargo XML or PDF manifests into XML for ASYCUDA World, with an editor for reviewing and correcting the result.

A Windows desktop tool for extracting rock-joint measurements from 3D models and point clouds, then assessing slope stability and producing calculation reports.

A free, open-source app for keeping files, software packages, and webpages on your own drive for offline access.

Upload GPS ride files to compare trail runs, section times, and replays against your own bests and friends’ rides.

A Minecraft mod that reads music playing in Spotify or Apple Music and displays synced, word-by-word lyrics in-game.

An open-source Android app that counts videos in short-form feeds and can pause or block them at limits you set.

A French- and Arabic-language batch-cooking planner for choosing Tunisian meals, building a shopping list and following a guided cooking session.

Better Worlds presents three live browser apps for designing printable spool parts, checking building scale against a printer, and splitting 3D models into printable pieces.

A planning hub for South Indian functions that brings together menus, food quantities, cost estimates and caterer discovery.

A browser-based tool for organizing a Chanukah car parade, syncing music across cars, and showing the route on a live map.

An open-source, self-hosted photo and video library whose Android, Mac, and web apps encrypt files on your devices before upload.

A local guide for comparing student apartments and campus housing, with sections for classes, food, transit, guides, and calculators.

Crewnet is crew-management software for wildland fire contractors, covering rosters, qualifications, assignments, time reports, manifests, training, and payroll.

A free wedding reception timeline builder that schedules dancing before dinner, then helps couples plan the rest of the night.

This iPhone and iPad beta runs selected RPG Maker games and browser games from files or web addresses supplied by the user.

An online accounting tool that proposes double-entry bookkeeping from a written description of a transaction, with country-specific account plans and reports.

A searchable directory of Tampa Bay dog and cat groomers, with service, area, policy, and business details drawn from each groomer’s own site.

A searchable directory for checking which Windows apps have native ARM64 versions, with alternatives for apps that do not.

简与繁 converts between Simplified and Traditional Chinese, with options for Taiwan and Hong Kong forms, regional wording, and several file formats.

A gate configurator that turns site measurements and model choices into a 3D preview, workshop drawing, and cut list.

An Android camera app offering automatic shooting alongside manual controls, merged photos, RAW capture, and several kinds of video.

An interactive Idaho mining-claims map with claim history, alerts, land and geology layers, and offline map-saving tools.

An iPhone and iPad app for choosing guitar chords with keys or touch, then strumming or picking patterns with a mouse wheel or on-screen controls.

My Tailor Track offers Pakistani tailors and boutiques software for managing measurements, orders, payments, karigar work, and customer updates.

NFK sells animation, caption, title, transition, and sound packs for DaVinci Resolve, with products for both vertical and 16:9 timelines.

A Premiere Pro panel that analyzes audio locally to cut silences, generate subtitles, and run other editing tools.

A Romanian recreational-fishing guide with species and rules checks, a fishing-line calculator, and dated equipment prices.

A macOS acid synth that generates riffs, shapes them with modeled effects, and can send a companion riff as MIDI.

A collection of free printable score sheets for dice, card, and tile games, paired with an in-browser scorekeeper.

A browser-based tool converts a photo into patterns for cross stitch, beads, crochet, knitting, diamond painting, brick mosaics, and string art.

A browser-based tanpura drone player with acoustic and electronic recordings, selectable Sa, and optional tabla accompaniment.

A browser-based tool for redacting personal identifiers from tax forms before sharing them.

vitePOS presents a phone-based point-of-sale system for Congolese merchants, with sales, stock, and profit tracking that the homepage says continues without a network connection.

A standalone Windows instrument for shaping four clock-driven parts—KICK, BASS, PERC and AIR—during a performance.

A collection of free tools for game launch prep, mod compatibility, Minecraft diagnostics, and in-game marketplace fees.

A free Windows companion that records Deadlock matches, clips notable plays, and presents match stats and post-game reviews.

A farm-bookkeeping system for Pakistani farms that presents voice notes, bill photos, or text as ways to enter costs, sales, and dues into a field-by-field ledger.

A public comparison of AI model prices across text, image, and video, with calculators for estimating whole-job costs.

Airfielder helps pilots track airports they’ve visited, with a map, visit details, photos, and progress counters.

A free, browser-based suite for tracking prop-firm account limits, journaling trades, exploring market statistics, and sizing positions.

A native, offline instrument-navigation trainer for building and repeating practice exercises with charts you supply.

Ask About Vaccines lets visitors describe a concern, talk it through, and follow links to sources they can read themselves.

AtlasMitra presents a tap-through atlas for competitive-exam geography revision, with India maps, thematic layers, and a spaced-review loop.

A browser-based converter turns bank statement PDFs, scans, and photos into spreadsheet and accounting formats, checking extracted transactions against the statement’s printed balances.

A Spanish-language guide and calculator for comparing balcony solar kits, estimating their output, and checking regulations across five countries.

A lookup for car key-fob battery sizes by make, model, and year range.

An interactive calculator estimates home-charging costs, real-world range, and road-trip charging needs using vehicle, electricity-rate, weather, and driving details.

A Charlotte-area guide to private-school funding, disability education accounts, pre-K programs, and schools that accept state payments.

A free search tool compares self-pay prices for healthcare services at nearby hospitals, clinics, labs, and imaging centers.

A sourced tracker of AI video prices across APIs, app plans and resellers, with a calculator for estimating cost per usable clip.

CodeISB presents bulk RNA-seq analysis paired with checks for sample swaps, outlier libraries, and batch confounding.

Copyable is a Mac utility that turns selected text on screen—including text in videos, slides, images, and tables—into clipboard-ready text.

CueFish combines table-time billing, kitchen and bar orders, and point-of-sale functions for pool rooms and billiards halls.

A browser-based planner for road-bike routes and loops, with controls for road surface, traffic, nature, elevation, weather, and wind.

DataSale gathers sourced reports of company-data and code sales to AI buyers, offers a rough code-pricing calculator, and invites sellers to request introductions.

A service for creating shareable information pages and printable QR codes for family events.

Diamond Painting Maker turns a photo into an editable diamond-painting pattern and offers printable charts with DMC color and drill counts.

A Thanksgiving menu planner matches recipes to your guests, available time, and oven constraints, then lays out a cooking plan.

A Windows disk-space visualizer that scans locally, maps file and folder sizes, and lets you explore directories or run up to three scans at once.

A custom MCP connector lets Claude, Grok and other assistants query Spain’s CNMC grid-access capacity maps by location and requested power.

A browser-based platform for clinical research teams to capture drawing tasks on tablets and export standardized motor measurements.

A ZIP-based lookup and set of calculators for comparing electricity bills and home-heating costs using local utility rates.

Elmer is a proposed display for controlling a Mac or iPhone with gaze, gestures, and voice.

An independent review maps the data paths described in EroLove AI’s privacy policy and offers a local risk worksheet.

FanGuard is a paid Mac utility that monitors CPU, GPU, and temperature readings, then runs fans at maximum when configured limits are crossed.

A pilot-facing airport finder that filters by approach, runway, range and weather conditions.

An independent guide compares fishing license prices and rules across U.S. states, with a trip-cost calculator.

A research site for comparing shower, faucet, and toilet water-use figures, with a calculator for estimating household routines.

A free creative asset set pairing two Flint Cave display fonts with 48 hand-drawn SVG icons.

A browser-based telestration tool for coaches and analysts to annotate their own sports footage with tracked players, tactical lines, and other overlays.

FL Site Services estimates portable-toilet needs and costs from a Florida job site's crew size and ZIP code, then offers to connect the site with local vendors.

Fostem is software for independent fostering agencies in England, bringing carers’ daily records, safeguarding flags and staff follow-up into one system.

Fragile is an iPhone and Mac memo app where notes can expire, stay pinned, or be organized into continuous tag-based pages.

Frame Flipper turns storyboard pages into numbered frames, an editable PowerPoint, a PDF, and individual images.

GaddoSYNC is presented as a phone-based ski and snowboard video tool for comparing runs as ghost overlays, split-screen views, and split times.

A collections tool for Indian B2B distributors that imports Tally receivables and schedules invoice reminders by email and WhatsApp, with UPI links and a 45-day notice generator.

BidMate says it turns electrical drawings and specifications into a takeoff that an estimator reviews and approves line by line.

CaliCam is an iPhone and iPad workout app that uses the camera to count full reps during short, at-home calisthenics circuits.

Cover4 describes a system for sending emergency orders to venue and campus staff and tracking named acknowledgments, including when cell, Wi-Fi, and internet are unavailable.

GetGPSR offers a form for generating print-ready product labels, multilingual text and a risk-record template.

Hookprint presents a tool for turning a photo into a crochet chart with adjustable stitch count, colors, and yarn weight.

An embeddable 3D visualizer lets tint-shop customers preview shades on a chosen vehicle before requesting a quote.

A hosted tool that lays out and checks parking-lot lighting, either around existing poles or by searching for new ones.

A free, multilingual suite of 16 browser tools for totaling life costs, checking deal paperwork, and putting shared money splits in writing.

Ghita presents a way to track craft supplies, calculate product costs and profits, and monitor sales from a maker’s account.

A Windows app measures scanned Pokémon cards, estimates grading outcomes, and weighs the likely proceeds against the costs of submitting them.

A browser-based estimator for sketching gutter jobs, assembling materials and pricing, and preparing customer PDFs.

A Nepal-focused guide that compares supplement costs by ingredient amount and also lists gyms, trainers, events, and a workout planner.

A Swiss app in development for pest-control work, from scanning traps in the field to sending customer reports.

A free, automatically refreshed calendar of in-person technology meetups in Tel Aviv and nearby.

A forthcoming iPhone app proposes unlocking selected distracting apps only after its camera validates a handstand.

An iPhone cleanup app for sorting photos and videos, with additional tools for contacts, calendars, and files.

A browser-based color converter with coated and uncoated paper previews, ink-coverage checks, spot references, and export options.

A set of U.S. home-battery calculators and state guides for estimating backup size, cost, payback, and electrical loads.

A French woodworking tool that turns a furniture description or sketch into an editable, piece-by-piece cut list, workshop plans, and a 3D view.

A browser-based procedural music player lets you shape lo-fi arrangements and hear them evolve over time.

A league-racing tool that turns iRacing results into lap-by-lap pace, caution, pit-stop, and driver comparisons.

Iron Bind presents an offline writing suite for novelists, with drafting, planning, worldbuilding, and print and ebook exports.

A set of calculators, searchable fare databases and guides helps travelers estimate Japan travel costs and check fees and rules.

A browser-based JSONPath tool for exploring documents with a deliberately limited, documented query syntax.

A Spanish-language guide to working holidays in Australia, with visa tracking, arrival checklists, city information, and practical tools.

LampOff brings stage-lighting plans, patch lists, focus notes, and rider documents together in one project for theater, concert, and touring crews.

Life on Rotation presents a calendar for offshore, rig and FIFO workers to track shifts, crew changes and days off, with a separate family calendar.

Enter a Costa Rican property number to request a plain-English report covering registered ownership, debts, land size, land type, and potential red flags.

A live wind forecast estimates whether conditions on the Lookout Mountain climb in Golden, Colorado, could help or hinder a cycling PR.

A $3 Mac menu bar app that assigns volume, brightness, media seeking, and custom actions to trackpad edges and corners.

MarginMonday says it compares restaurant supplier invoices and emails a weekly list of price increases, new fees, and their estimated monthly cost.

MechPin provides HVAC and plumbing takeoffs for commercial mechanical contractors in Ontario, tying quantities to their source sheets for estimator review and approval into the contractor’s own workbook.

An independent guide to Meshtastic devices, off-grid LoRa messaging, setup, range, and country-specific radio limits.

A browser-based rhythm trainer lets musicians place notes on a circular bar, adjust their timing, and practise different time-feels.

A free iPhone app that finds London places two people can reach in roughly the same time by public transport.

An interactive leaderboard tracking perceived staying power across tech and AI companies, products, people, and countries.

A free VST3/AU plugin that detects and repairs mouth clicks in a DAW, with downloads available after creating a Greenlit account.

A free, unofficial assembly guide that says it can show IKEA furniture builds in 3D, read steps aloud, and identify the parts and tools needed.

A road-trip guide that presents worthwhile stops, trip planning, spoken directions, and an automatically written logbook.

A Bangladesh-focused planner that turns a plot and building brief into floor plans, a taka estimate, and a 3D walkthrough.

A private iPhone app concept for keeping notes about loved ones, from gift ideas and birthdays to moments you want to remember.

A free browser-based planner projects military leave balances and helps users plan PCS moves, terminal leave, and trips.

A browser-based workspace for arranging a reference image, simplifying its shapes, estimating a starting palette, and preparing a transfer grid for a physical canvas.