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Interactive map comparing 190 countries on sunshine, tax rates, cost of living and other relocation-relevant metrics, usable without creating an account.
No sign-up
What to know▼
How it works
Map-based tool covering 190 countries at 0.5-degree precision, comparing sunshine hours, tax rates, cost of living, property prices, and climate data, with heatmaps and side-by-side comparisons.
What's different
Climate data verified against 56 WMO weather stations, sourced from official government and international datasets.
Pricing
Free to start, no account required for basic exploration.
Best for
People researching where to relocate or work remotely.
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An interactive tool for exploring cosmic objects, for space enthusiasts who want visual exploration instead of reading static articles.
What to know▼
How it works
An interactive encyclopedia for exploring the cosmos, with 169+ cosmic objects including galaxies, nebulae, stars, and black holes, with scientific data and visualizations.
Best for
Space enthusiasts who want visual exploration instead of reading static articles.
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The permanent verified archive of eyewitness footage
Watch out · Currently in private beta.
What to know▼
How it works
A public archive where every submitted eyewitness video is checked before it appears, then preserved and organized by date, location, and metadata so it can be searched later.
What's different
Videos are organized by time, place, and metadata rather than ranked by popularity or influencer status, and every clip is verified before publication.
Best for
Journalists, investigators, and eyewitnesses who need to find or contribute verified, unaltered footage of an event.
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A $49-lifetime, mastery-based Mandarin course structured as a dependency graph of the most useful 20% of the language, for self-directed learners instead of a subscription app.
Pay onceNo subscription
What to know▼
How it works
Maps Mandarin learning into a dependency graph focused on the most important 20% of the language that covers 80% of conversational use, based on methods from intensive immersion programs.
What's different
Structures learning as a dependency graph of high-frequency concepts rather than a generic course sequence.
Pricing
$49 for lifetime access.
Best for
Self-directed learners starting Mandarin from scratch who want a mastery-based path instead of a subscription app.
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Generates camera settings, sun position, and weather-based shooting plans for sports photographers before a match, with a free tier and a one-time-payment Pro upgrade.
FreePay once
What to know▼
How it works
Enter your venue, sport, and kickoff time to get sport-specific shutter speed, ISO, AF mode, and lens suggestions, plus a sun timeline (sunset, golden hour, azimuth) for that venue, match-day weather, an indoor mode for LED anti-flicker, and a simplified Parent Mode.
Pricing
Free with 3 plans; $14.99 one-time for Pro.
Best for
Sports photographers preparing camera settings before a match.
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A cost-of-living calculator for people deciding where to move in the U.S. who want county-level numbers personalized to their income and household, not a generic city ranking.
What to know▼
How it works
A cost-of-living calculator that models ACA healthcare subsidies, state taxes, and housing costs for all 3,200+ U.S. counties, using American Community Survey medians calibrated with Zillow rent data.
What's different
Personalizes the estimate to your specific income and household size rather than showing a generic city ranking.
Best for
People deciding where to move in the U.S. who want county-level numbers tailored to their own finances.
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Free real-time 3D globe visualizing live global signals like aircraft, ships, wildfires and internet outages.
FreeNo sign-up
What to know▼
How it works
A real-time 3D globe streaming aircraft, ships, trains, earthquakes, wildfires, lightning, submarine cables, internet outages, satellites, the Starlink constellation, air quality, and rocket launches.
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Transcribes short voice notes on-device into pattern dashboards, fully offline; data syncs end-to-end encrypted across devices, and you can plug in a local MCP server for your own AI agents.
Works offlineCan export my data
What to know▼
How it works
You speak a short voice note, it's transcribed on-device, and an offline dashboard surfaces patterns over time — repetition, distribution, spikes, changes, and correlations. Data syncs end-to-end encrypted across devices with keys you control, and can be exported/imported or connected to a local MCP server for your own agents to analyze.
What's different
Transcription and analysis happen entirely on-device with end-to-end encrypted sync, and data can be exported anytime to avoid lock-in.
Best for
People who want to track personal patterns from quick voice notes without their data leaving their control.
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Drag in photos, files or a folder and get an instant permanent website link, no code, no setup, no account needed. A general-purpose sharing tool, not built for any one profession.
Nothing to install
What to know▼
How it works
Drag in photos, files or a folder to get a permanent hosted link at your-name.nippy.site with HTTPS; photo folders become a gallery, documents become a download page, and existing website files are hosted as-is. The link stays the same even after you update the files.
What's different
No code, no account and no setup required, and sites stay online indefinitely with no expiry.
Best for
People who want to quickly share a photo shoot, portfolio, CV, menu or notes as a link, such as photographers, designers, job hunters or teachers.
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Cleans and transforms messy CSV/Google Sheets data into analysis-ready datasets with reusable playbooks, for analysts who spend more time cleaning than analyzing.
Can export my data
What to know▼
How it works
Clean/transform data, build visualizations, save reusable playbooks, export cleaned data or charts.
Best for
Analysts, researchers, and marketers doing repetitive data-cleaning work.
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Turns an iPad into a fullscreen, client-facing photo portfolio with pricing overlays and dual QR codes for contact or payment. Built for professional photographers presenting work to clients.
What to know▼
How it works
Turns an iPad into a fullscreen, client-facing photo portfolio with 6 transition animations, pricing overlay cards, and dual QR codes for switching between contact and payment. Connects to an external monitor via HDMI and goes fullscreen automatically.
What's different
Strips out menus and toolbars so only the photos are visible to the client.
Best for
Professional photographers presenting and selling their work directly to clients.
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An open-source visual table editor with a Python DSL that exports to HTML, PDF, and Excel, for developers automating dashboards and reports without hand-writing layout code.
Open sourceCan export my data
What to know▼
How it works
A live preview grid stays bidirectionally synced with Python code via an AST; design visually or write code and both update.
Best for
Developers automating BI dashboards, KPI cards, Gantt charts, or heatmaps.
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A fast, ad-free live dashboard of global disease outbreak data, for people who don't want to dig through slow, bloated official health portals.
Watch out · Presents raw aggregated data without editorial curation — check primary health authority sources before acting on it.
No ads
What to know▼
How it works
A zero-bloat live dashboard aggregating raw chronological outbreak metrics and transmission paths for ongoing disease spikes like Cyclospora and Ebola, engineered to load fast on low-bandwidth networks.
What's different
Ad-free and built for instant loading versus slow, fragmented official health portals buried in PDFs.
Best for
People who want quick access to raw outbreak data without digging through official portals.
Watch out
Presents raw aggregated data without editorial curation — check primary health authority sources before acting on it.
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A TypeScript library that renders algorithm functions as animated visual diagrams so developers can watch data structures change step by step while debugging.
Open source
What to know▼
How it works
Write TypeScript algorithm functions, run them with structured inputs, and watch arrays, matrices, trees, and pointers animate as the function executes.
Best for
developers learning or debugging data structures and algorithms.
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Turns a song and its cover art into an audio-reactive 4K music visualizer video.
What to know▼
How it works
Turns a song and its cover art into an audio-reactive 4K music visualizer video with spectrum bars, waveforms, radial rings, or vinyl styles, live preview, and 75 fonts.
What's different
No watermark; exports 4K 60fps MP4 in 16:9, 9:16, and 1:1.
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A free live dashboard tracking prices, load, and forecasts across all seven US deregulated power grids, built for energy market professionals and traders rather than casual users.
Free
What to know▼
How it works
A live dashboard covering all seven US deregulated power markets (ERCOT, PJM, NYISO, ISO-NE, MISO, CAISO, SPP), showing live load vs forecast, real-time zone and hub prices, day-ahead vs real-time spreads, fuel mix, and daily coincident-peak forecasts graded against official settlements.
What's different
Forecast calls are graded against official settlements and misses stay visible on the page rather than being removed.
Pricing
Free.
Best for
Energy market professionals and traders who need live pricing and forecasts across all US deregulated power grids.
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A dashboard that pulls together revenue totals from AdSense, YouTube, Shopify, Patreon, and other platforms into one live view instead of checking each site separately.
What to know▼
How it works
Connects multiple revenue-source accounts, including multiple Google logins, and refreshes totals automatically; read-only access.
Pricing
Free to start.
Best for
Creators and sellers earning from several platforms who want one combined revenue view.
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Reverse engineer any shot
What to know▼
How it works
Upload a film frame or photo and it breaks down the camera, lens, lighting, composition, and color used, then gives a practical plan for recreating the look. Includes a searchable archive of previously analyzed shots.
Best for
Filmmakers, cinematographers, and photographers who want to reverse-engineer a specific shot's look.
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A Windows network scanner with 26 IT tools for discovering, monitoring and managing devices — a free tier exists, but the full toolset is a $79 one-time Pro purchase, aimed at IT admins.
No subscription
What to know▼
How it works
Scans your network to discover, monitor and manage every connected device, with 26 IT tools, real-time radar, an encrypted credential vault, and 1,451 hostname patterns for identification.
Pricing
Free tier available; Pro is a $79 one-time purchase with no subscription.
Best for
IT admins and power users managing devices on a Windows network.
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A fast, ad-free interactive timezone visualizer for coordinating across remote teams.
Data stays with youNo ads
What to know▼
How it works
An interactive timezone visualizer built for engineers and remote teams to coordinate across borders, designed to be ad-free, lightweight, and privacy-first.
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An automation dashboard for managing bulk Telegram accounts, mass messaging, and view/subscriber boosting.
What to know▼
How it works
Automates Telegram operations including account registration, bulk account management, subscriber and view boosting, mass messaging, and channel scraping from a single dashboard.
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Turns your iPhone screen into a full-color light source for photography, ambient lighting, reading or signaling — a simple flashlight alternative with no accounts or ads.
No sign-upNo ads
What to know▼
How it works
Turns your iPhone screen into a full-screen, full-color light source with one tap, for use in photography, ambient lighting, reading or signaling.
What's different
Gives a full color palette rather than the white-only light most flashlight apps offer.
Best for
iPhone users who want colored screen lighting for photography, ambience or signaling without accounts or ads.
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A free, no-signup single-page tool that compares up to three job offers by charting cumulative vesting value over time instead of just comparing total compensation numbers.
No sign-up
What to know▼
How it works
Enter base, bonus, RSU grant, and vesting schedule for up to 3 offers; charts cumulative earned value year over year and shows walk-away value after year 1.
Pricing
No signup, single page, free.
Best for
Job seekers comparing offers by real payout timing, not just total comp.
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Pipeline that progressively analyzes an image into inspectable regions, objects, relationships and a navigable 3D evidence atlas.
What to know▼
How it works
Progressively analyzes an image through seven stages: regions, objects, relationships, composition/color theory, themes with cited evidence, an embedding space and a navigable 3D evidence atlas, validated against a Zod contract and exportable as JSON or a 3D scene package.
Best for
People needing inspectable visual evidence, including for DCC (3D content creation) tools.
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Free BaZi (Chinese Four Pillars) astrology chart calculator with True Solar Time correction.
Free
What to know▼
How it works
Generates a BaZi (Four Pillars) chart from birth date, time, and place, correcting for birthplace, historical time zone, daylight saving, and True Solar Time, showing Day Master and Five Elements.
Pricing
Free.
Best for
People exploring Chinese astrology for self-reflection.
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An all-in-one business dashboard for invoicing, CRM, payments, accounting and team chat, aimed at small businesses wanting to replace several separate tools.
What to know▼
How it works
Manages invoices, payments, CRM, accounting, Hub Chat, team chats and meetings from one dashboard.
What's different
Consolidates several separate business tools into a single hub.
Best for
Small businesses wanting to replace multiple point tools with one dashboard.
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Replaces your browser's new-tab page with a private local dashboard for tasks, a kanban board, quick links and a calendar, works offline and exports your data anytime.
No sign-upWorks offlineData stays with you
What to know▼
How it works
Replaces your browser's new-tab page with a dashboard for tasks, a kanban board, a job tracker, content planners, a screenshot inbox, quick links and a calendar; searchable with Cmd/Ctrl+K and exportable to Markdown, CSV, JSON, or a full backup.
What's different
100% local-first — no account, no cloud, no tracking, works offline, with everything stored on your device.
Best for
People who want a private productivity dashboard on every new tab without creating an account or sending data anywhere.
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A web dashboard (not a command-line tool) that gives you SSH terminal access, SFTP, and status monitoring, deployable on Cloudflare Workers — open source, for developers/IT.
Open source
What to know▼
How it works
A web-based dashboard giving SSH terminal access, SFTP file transfer, and status monitoring, deployable on Cloudflare Workers.
What's different
Open source and deploys directly on Cloudflare Workers rather than requiring a dedicated server.
Best for
Developers and IT users who want browser-based SSH access without installing a native client.
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Watches weather, tide, moon and sky forecasts for your saved locations and alerts you when good conditions line up — built for landscape and seascape photographers.
What to know▼
How it works
Monitors saved locations against weather, tide, moon and sky forecasts, and sends alerts when conditions align for a shot, based on rules the user defines (cloud cover, wave height, wind, rain, visibility, humidity, and more).
What's different
Replaces checking several separate weather apps, tide charts, moon calendars and cloud forecasts; shows the underlying forecast signals instead of a black-box sunset score.
Best for
Landscape and seascape photographers who track specific locations for shooting conditions.
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Upload your Tally export and get instant accounts-receivable aging analytics, overdue invoices, collection trends, processed entirely in your browser so financial data never reaches a server. Built for accountants.
Data stays with you
What to know▼
How it works
You upload a Tally accounting export and it visualizes customer balances, overdue invoices, aging buckets, collection trends and receivable performance, with dynamic risk assessment for outstanding invoices.
What's different
Processes the Tally export entirely client-side, so financial data never reaches a server, avoiding expensive ERP add-ons or sharing data with third parties.
Best for
Accountants and businesses using Tally who want AR aging analytics without an ERP add-on or uploading financial data to the cloud.
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A fast Windows image viewer that opens everyday and modern formats like HEIC, WebP, AVIF and RAW instantly, with basic rotate and crop tools built in.
Free
What to know▼
How it works
A fast Windows image viewer that opens JPEG, PNG, AVIF, HEIC, WebP, JPEG XL and RAW camera files instantly, with filmstrip browsing, 100% zoom, rotate/crop, EXIF metadata, and an interactive map for shot locations; can also turn a folder into a slideshow with transitions and music, exported as video.
Best for
Windows users who want fast browsing across a wide range of image formats without a bloated editor.
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A free CRM bundling leads, invoices, payments, WhatsApp reminders, and audit logs into one dashboard, built for small-business teams who don't want to stitch together separate tools.
Free
What to know▼
How it works
A CRM dashboard bundling customers, leads, calendars, tasks, invoices, payments, WhatsApp reminders, audit logs and Customer 360 profiles for small business teams.
Pricing
Free.
Best for
Small business teams who want customer, invoicing and WhatsApp communication in one dashboard instead of separate tools.
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A link shortener with click analytics (location, device) that works instantly without an account, though signing in unlocks a full dashboard.
FreeNo sign-up
What to know▼
How it works
Paste a URL to get a short link instantly with no signup required; signing in unlocks a dashboard with real-time click analytics (location down to city, device) and custom QR codes.
What's different
Core shortening works without an account, unlike tools that gate the basic function behind signup.
Best for
Creators and marketers who want to track which shared links and campaigns are actually converting.
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Removes backgrounds from up to 20 images at once for free, no signup — built for online sellers, designers and photographers who need quick transparent PNGs.
FreeNo sign-up
What to know▼
How it works
Removes backgrounds from images automatically, with batch processing of up to 20 images at once, outputting transparent PNG files; works directly in the browser with no upload account or software install required.
Pricing
Free.
Best for
E-commerce sellers, designers, photographers and content creators who need quick transparent product or asset images.
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Turns any HTTPS JSON endpoint into a native iOS/watchOS widget (Home Screen, Lock Screen, StandBy, Watch) with no account and no data leaving your device; a DIY widget tool, not a plug-and-play dashboard, and it still needs a live connection to fetch each endpoint.
No sign-up
What to know▼
How it works
Connect any HTTPS endpoint, tap the JSON fields you want in a live browser, pick a render type (number, chart, gauge, map), and place it as a native widget on Home Screen, Lock Screen, StandBy, or Watch.
What's different
No code, no account, and no data leaves the device — secrets sit in the Keychain and fetching happens on-device with no third-party SDKs or analytics.
Best for
People who want a custom widget built from their own API or data source without building an app.
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A Wi-Fi remote control app for the Nikon Z fc and Z f cameras with live view and automatic shutter tripping.
Watch out · Works over Wi-Fi on the device, no account, only for the Nikon Z fc and Z f.
No sign-up
What to know▼
How it works
A Wi-Fi remote for the Nikon Z fc and Z f with real dials, live view, and EXIF preserved; the 1.1 update can watch the frame and trip the shutter automatically.
Watch out
Works over Wi-Fi on the device, no account, only for the Nikon Z fc and Z f.
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A visualization tool that renders GitHub repositories as a night sky, turning trending repos into bright stars and sudden growth spikes into supernovae.
No sign-upNo tracking
What to know▼
How it works
Runs 100% client-side, mapping GitHub repo activity to astronomical classifications and calculating real Δ-magnitudes for sudden growth.
What's different
Covers any month back to 2008 and can chart an individual GitHub account as a constellation.
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A free browser-based chart maker that imports data from Excel or Google Sheets and exports images or animated charts, no sign-up needed.
FreeNo sign-upCan export my data
What to know▼
How it works
A web-based chart maker that imports data from Excel (XLSX) or Google Sheets, or manual entry, to build line, bar, pie, and radar charts with real-time preview, then exports as static images or animated charts.
Pricing
Free, no registration required.
Best for
Anyone who needs to build presentation- or report-ready charts without downloading software or signing up.
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A free set of browser-based music tools — chord transposer, tuner, capo calculator, chord-sheet maker — for musicians who want quick practice aids without signing up.
FreeNo sign-up
What to know▼
How it works
A collection of browser-based music tools — chord transposer, capo calculator, guitar tuner, tap tempo BPM finder, chord progression generator, piano and ukulele chord finders, and a chord-sheet PDF maker.
Pricing
Free, no sign-up required.
Best for
Guitarists, singers, ukulele players, and pianists who want quick tools for practice, songwriting, or preparing chord sheets.
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A free options trading calculator with live options chains, full Greeks, and a Black-Scholes P&L heatmap.
FreeNo sign-up
What to know▼
How it works
Visualizes any options strategy before you trade it using real options chains, full Greeks (Delta, Gamma, Theta, Vega, Rho), Black-Scholes probability of profit, and a P&L heatmap across price and time, covering 19 strategies.
Pricing
Free, no account or paywall.
Best for
Options traders wanting to test a strategy before risking money.
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Turns GPS data already embedded in your photos into a private travel map, processing everything on your device so your location history never leaves your phone.
Works offlineData stays with you
What to know▼
How it works
Reads the GPS data already embedded in a user's photos to build a visual map of everywhere they've traveled.
What's different
Processes everything 100% on-device, so location data never leaves the user's control.
Best for
People who want a private travel map built from their existing photo library.
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Compresses images and video (JPG, PNG, TIFF, MP4, GIF) entirely on your device with no upload to a server — for Mac, Windows and Linux, privacy-focused.
Works offlineData stays with you
What to know▼
How it works
Compresses JPG, PNG, TIFF, MP4 and GIF files, processing them locally on-device rather than uploading them to a server, via web tools or a dedicated offline desktop app for Mac, Windows and Linux.
What's different
Local, privacy-focused processing rather than server-side upload-based compression.
Best for
Anyone who wants to compress images or video without sending files to a third-party server.
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A phone app that simulates shooting real film — 36 exposures per roll, no preview, no delete, results only after a 48-hour develop wait — for people who want photography friction back.
Works offlineNo tracking
What to know▼
How it works
on-device film emulation with a 36-shot roll limit and 48-hour delayed reveal
What's different
no preview, no delete, no accounts or tracking, unlike a normal camera app
Pricing
camera free, film sold by the roll
Best for
people who want deliberate, slow photography instead of instant digital shooting
