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  1. 01The Tax Map: a map of England and a Leicester comparison showing an estimated £741 decrease.

    Tax Map

    Property-tax reform map of England

    An interactive map comparing England's Council Tax with an illustrative annual property tax, area by area.

    Use in the browser
    ★ 1▲ 1 HN
    NEW 0h OLD WHEN SEENDATA · Show HN · MIT · kept 2026.10.04
  2. 02The Open Hikmah home: 'Explore the Qur'an as a connected graph' beside verse cards joined by labelled links.

    Open Hikmah

    Qur'an verse graph explorer

    A web app that lets you explore Qur'an verses as a connected graph on an infinite canvas, with AI explaining each link.

    Use in the browser
    ★ 179
    EDUCATION · GitHub · GPL-3.0 · kept 2026.10.04
  3. 03Scissor's first screen: a welcome dialog over the editor, with the toolbar and the properties and colour panels behind it.

    Scissor

    Free vector editor in your browser

    A free vector and pixel design editor that runs in your browser — no install, no account.

    Use in the browser
    ▲ 147 HN
    NEW 0h OLD WHEN SEENDESIGN · Show HN · kept 2026.09.30
  4. 04Lofi Cities' Paris scene: a pixel-art attic with the Eiffel Tower through a rainy window, playback controls below.

    Lofi Cities

    Pixel-art city nights with lofi music

    Pixel-art city nights with lofi music generated in your browser — a backdrop for working.

    Use in the browser
    ▲ 319 HN
    NEW 4h OLD WHEN SEENMEDIA · Show HN · kept 2026.09.29
  5. 05Shotcandy before and after: a plain dashboard screenshot on the left, restyled on an orange background at an angle on the right.

    Shotcandy

    Turn screenshots into share-ready images

    Paste a plain screenshot and get a share-ready image in seconds — free, in the browser.

    Use in the browser
    ★ 58▲ 2 HN
    NEW 1h OLD WHEN SEENDESIGN · Show HN · MIT · kept 2026.09.29
  6. 06A diagram drawn with reladraw: external drive, home server, desktops and laptops linked to cloud sync with arrows.

    reladraw

    Diagram language with your own layout

    A text language for diagrams where you decide where things go.

    Use in the browser
    ★ 1.2k▲ 411 HN
    NEW 9h OLD WHEN SEENDESIGN · Show HN · Apache-2.0 · kept 2026.09.29
  7. 07LiveWorld's globe: yellow clusters counting cameras around Korea and Japan, with music, menu, saved and submit buttons below.

    LiveWorld

    Browse the world's live cams on a globe

    Every 24/7 YouTube live camera on one spinning globe you can browse.

    Use in the browser
    ▲ 42 HN
    NEW 1h OLD WHEN SEENMEDIA · Show HN · kept 2026.09.29
  8. 08SeasonMap: 'Where it's good in September', a month picker, and a world map with in-season places as green dots.

    SeasonMap

    See where to travel this month

    A world map that shows where it is good to travel this month, based on climate data.

    Use in the browser
    ▲ 23 HN
    NEW 7h OLD WHEN SEENDATA · Show HN · kept 2026.09.29
  9. 09The AI Builder start screen: a prompt box asking what to build, with idea buttons such as Quiz game, Pomodoro timer and Expense tracker.

    AI Builder

    Build a site or app by describing it

    Describe what you want in plain words and AI builds the website or app in your browser, ready to publish.

    Use in the browser
    ★ 314▲ 4 HN
    NEW 1h OLD WHEN SEENAI · Show HN · Apache-2.0 · kept 2026.09.25
  10. 10The 2049 game screen: a dark dungeon grid with HP, power, score and depth shown, a green descend tile, and a few numbered tiles.

    2049 — Mines of Merge

    2048 fused with Minesweeper in a dungeon

    You are the tile: slide by 2048 rules while dodging Minesweeper-style hidden mines down eight depths.

    Use in the browser
    ★ 2▲ 1 HN
    NEW 0h OLD WHEN SEENGAMES · Show HN · MIT · kept 2026.09.22
  11. 11The pokertools-arena screen: current decision and history on the left, and a green poker table with ten empty seats on the right.

    pokertools-arena

    Watch AI models play poker at one table

    Seats several OpenAI-compatible models at the same poker table and lets you watch every decision as a spectator.

    Use in the browser
    ★ 2▲ 3 HN
    NEW 0h OLD WHEN SEENAI · Show HN · MIT · kept 2026.09.22
  12. 12The ZCode brand card: a white ZCODE wordmark and square logo on black.

    ZCode

    Run multiple coding agents from one app

    A coding workspace that runs several AI agents at once and drives a goal to completion.

    Use in the browser
    ★ 8.4k
    NEW 18h OLD WHEN SEENAI · GitHub · Apache-2.0 · kept 2026.09.22
  13. 13The Ruffle web demo: a file picker bar at the top and the Flash-built Ruffle logo animation playing in the middle.

    Ruffle

    Play old Flash files again

    A Flash Player emulator that runs old SWF games and animations in today’s browser.

    Use in the browser
    ★ 18.8k
    GAMES · GitHub · kept 2026.09.21
  14. 14The SuperSplat editor: a snow-covered cabin rendered in 3D, a scene list with position, rotation and scale on the left, and a splat data histogram below.

    SuperSplat

    Edit 3D Gaussian splats in a browser

    A browser editor for inspecting, cleaning up and publishing 3D Gaussian Splats.

    Use in the browser
    ★ 10.5k
    DESIGN · GitHub · MIT · kept 2026.09.21
  15. 15The Apeeye home screen: "Fake APIs. Real endpoints.", a button to open the Playground, and a row showing the workspace URL to copy.

    Apeeye

    Spin up mock REST endpoints fast

    Mock REST endpoints in seconds — no login, no config, no database.

    Use in the browser
    ★ 6▲ 2 HN
    NEW 1h OLD WHEN SEENDEV TOOLS · Show HN · MIT · kept 2026.09.19
  16. 16The Alidade editor: a camera and terrain panel on the left, and 3D mountainous terrain rendered under a night sky on the right.

    Alidade

    Build and style maps in the browser

    An open Web-GIS: drop in spatial data, style it, and fly over 3D terrain in the browser.

    Use in the browser
    ★ 17▲ 2 HN
    NEW 1h OLD WHEN SEENDATA · Show HN · Apache-2.0 · kept 2026.09.19
  17. 17The Syrinx library: a large cover and description at the top, with cards for the bundled pieces such as Luv Letter and Flower Dance below.

    Syrinx

    Practise flute with piano backing

    A flute practice app that plays the piano part for you and shows how each note landed.

    Use in the browser
    ★ 51
    EDUCATION · GitHub · Apache-2.0 · kept 2026.09.19
  18. 18The GitDiagram entry screen: a field for a repository URL, a Diagram button and example repositories such as FastAPI and Flask.

    GitDiagram

    See how a GitHub project is built

    Paste a GitHub repository URL and get its architecture as one interactive diagram.

    Use in the browser
    ★ 18.7k
    DEV TOOLS · GitHub · MIT · kept 2026.09.19
  19. 19The liarjs.dev page on a blue background, headlined "Can your browser fool me?" with the browser analysis in progress.

    liarjs

    Check where a browser contradicts itself

    Reads what a browser says about itself, compares it with what the network actually saw, and reports every disagreement.

    Use in the browser
    ★ 4
    SECURITY · GitHub · MIT · kept 2026.09.18
  20. 20The OpenStock dashboard with a price list and chart on the left and a colour-coded sector heatmap on the right.

    OpenStock

    Track prices and set your own alerts

    An open-source dashboard for tracking stock prices, company details and personalised alerts in one place.

    Use in the browser
    ★ 21k
    FINANCE · GitHub · AGPL-3.0 · kept 2026.09.18
  21. 21The Harper site showing the grammar checker marking issues in a sentence.

    Harper

    Offline English grammar checking

    An English grammar checker that runs on your own machine, so what you write never leaves it.

    Use in the browser
    ★ 17.3k
    PRODUCTIVITY · GitHub · Apache-2.0 · kept 2026.09.18
  22. 22The Actual Budget screen: an account list on the left and a month-by-month table of budgeted, spent and balance amounts per category.

    Actual Budget

    Budgeting that stays on your device

    A local-first budgeting app that keeps your finances on your own device, using envelope budgeting.

    Use in the browser
    ★ 29.9k
    FINANCE · GitHub · MIT · kept 2026.09.18
  23. 23BG0's homepage: a dark screen with the headline "Background removal that stays on your device."

    BG0

    No-account background remover

    Removes a photo's background entirely inside your browser — no upload, no server, no account.

    Use in the browser
    ★ 486
    NEW 28h OLD WHEN SEENMEDIA · GitHub · Apache-2.0 · kept 2026.09.17
  24. 24Words of Hanoi play screen: five test tubes of letter tiles with Moves and Par counters above and Undo and Reset buttons below.

    Words of Hanoi

    Daily word puzzle for puzzle fans

    A daily puzzle: move letter tiles between five tubes until every full tube spells a word.

    Use in the browser
    ▲ 1 HN
    NEW 2h OLD WHEN SEENGAMES · Show HN · kept 2026.09.15
  25. 25Hindsight landing page: thousands of video dots grouped into issue clusters, with a central search box for a topic, creator or YouTube link.

    Hindsight

    Narrative map for YouTube viewers

    Remembers 49,411 videos, maps 22,904 by issue, traces how a YouTuber's argument changed.

    Use in the browser
    ★ 0▲ 1 HN
    NEW 2h OLD WHEN SEENAI · Show HN · MIT · kept 2026.09.15
  26. 26SubSweep landing page: the headline beside a sample result card showing $3,117.84 a year across 8 recurring charges, a Netflix price rise, an Adobe refund window and a lapsed Stan charge.

    SubSweep

    Subscription audit for Australians

    Finds forgotten subscriptions, price hikes and refund windows in an Australian bank CSV.

    Use in the browser
    ▲ 1 HN
    NEW 2h OLD WHEN SEENFINANCE · Show HN · kept 2026.09.15
  27. 27The auditor's dark UI: a four-step pipeline diagram at the top, a code editor with the 'Run 4-Step Security Audit' button on the left, and the findings panel on the right.

    Qwen2.5 Program Slicing Security Auditor

    JavaScript security audit for web devs

    Paste JS or HTML; a fine-tuned 7B model traces each risky sink to an exploit and verdict.

    Use in the browser
    ♥ 1
    NEW 1h OLD WHEN SEENSECURITY · Hugging Face · kept 2026.09.15
  28. 28Forma editor: a sample ONNX graph on the canvas with the Conv node selected and its editable attributes, tensor shapes and parameter count in the Layer Inspector.

    Forma

    ONNX graph editor for ML engineers

    Drop an .onnx file in the browser, see the graph, edit a node and export — no Python.

    Use in the browser
    ★ 5▲ 2 HN
    NEW 1h OLD WHEN SEENDEV TOOLS · Show HN · kept 2026.09.15
  29. 29anydoc browser demo with the document drop area, the converted Markdown output and Copy / Download .md buttons

    anydoc

    Office docs to Markdown for LLM input

    Converts Word, PowerPoint, Excel, PDF and EPUB to Markdown; run via npx or in the browser

    Use in the browser
    ★ 23.3k
    PRODUCTIVITY · GitHub · MIT · kept 2026.09.14
  30. 30The PartMode social preview: 'Browser CAD for people + typed agents' with LOCAL-FIRST, EXACT B-REP and STEP badges on the left, and on the right the Studio with a 3D Tools ribbon (Extrude, Cut, Hole Wizard, Thread), a model tree, a plate with a hole in the viewport and an Agent Flight Recorder inspector

    PartMode

    Mechanical CAD in the browser

    Parametric mechanical CAD in the browser: constrained sketches, assemblies, drawings, STEP

    Use in the browser
    ★ 504
    BACK CATALOGDESIGN · GitHub · AGPL-3.0 · kept 2026.09.14
  31. 31Breakscale's Retry Storm example: a top bar reading 100 requests per second offered, goodput 0/s, errors 100% and 118/s dropped, a canvas with Client → API Server → Database boxes showing the database 99.9% busy, and a handwritten-style explanation below

    Breakscale

    System-design simulator for learners

    Browser system-design simulator: build a topology, load it until it breaks, see why

    Use in the browser
    ★ 2k
    BACK CATALOGEDUCATION · GitHub · MIT · kept 2026.09.14
  32. 32A 3D view inside a Halcyon Video store: blue-and-white fit-out, MOVIES signs, shelves stocked with video cases, a Previously Viewed rack and a CRT television hanging from the ceiling

    Halcyon Video

    3D video store for your media server

    Turns your Jellyfin, Plex or Emby library into a walkable 3D 1990s video rental store

    Use in the browser
    ★ 954
    BACK CATALOGMEDIA · GitHub · GPL-3.0 · kept 2026.09.14
  33. 33The Let's Seal verification portal: a 'Verify a document' heading above a drop zone for a PDF and a field for pasting a SHA-256 fingerprint or proof link

    Let's Seal

    Prove a file is unaltered and dated

    Free web app and open SEAL standard that proves a file is unaltered and existed by a date

    Use in the browser
    ★ 378▲ 94 HN
    BACK CATALOGSECURITY · Show HN · Apache-2.0 · kept 2026.09.14
  34. 34The OpenMouse web control panel showing a connected mouse's information and its DPI and polling-rate settings

    OpenMouse

    Gaming-mouse settings in the browser

    Browser control panel for gaming-mouse DPI and polling rate, no vendor driver needed

    Use in the browser
    ★ 2.8k
    BACK CATALOGHARDWARE · GitHub · AGPL-3.0 · kept 2026.09.14
  35. 35The Bento slides editor running in a browser on the starter deck at bento.page/slides [layout to be confirmed]

    Bento

    One-file slides for presenters

    A PowerPoint alternative in one HTML file; edit, present and share with only a browser.

    Use in the browser
    ★ 5.6k
    BACK CATALOGPRODUCTIVITY · GitHub · MIT · kept 2026.09.14
  36. 36A phone receiving a file from another screen's animated QR stream, showing 130.5 KB/s goodput and decoding about halfway done

    Decimen Optical Transfer

    File transfer with no network

    Send a file up to 64 MB between two devices using only a screen and a camera; no network.

    Use in the browser
    ★ 7k
    BACK CATALOGEXPERIMENT · GitHub · AGPL-3.0 · kept 2026.09.14
  37. 37A GitFut player card — a FIFA-style card with the overall rating and the six stats PAC, SHO, PAS, DRI, DEF, PHY

    GitFut

    Player card for your GitHub profile

    Turns a GitHub profile into a FIFA-style card rated out of 99, embeddable as a live PNG

    Use in the browser
    ★ 2.7k
    BACK CATALOGSOCIAL · GitHub · MIT · kept 2026.09.14
  38. 38The SQL editor panel beside an ER diagram canvas where table boxes are joined by foreign-key lines

    SQL to ER Diagram

    SQL schema to ER diagram, in-browser

    Paste CREATE TABLE DDL, get an interactive ER diagram drawn entirely in your browser

    Use in the browser
    ★ 714
    BACK CATALOGDATA · GitHub · MIT · kept 2026.09.14
  39. 39README example — the original page on the left and, on the right, the same page rendered as if scanned: slight skew, grayscale, warm paper tone and edge shadow

    make-look-scanned

    Make a PDF look like a paper scan

    Makes a PDF look like a physical scan (skew, paper tone, grain); Go CLI or in-browser WASM

    Use in the browser
    ★ 940▲ 155 HN
    CROSS-SIGNAL Show HN + GitHubPRODUCTIVITY · Show HN · GitHub · AGPL-3.0 · kept 2026.09.14
  40. 40The PDFx viewer — a canvas where each document is a horizontal strip of page thumbnails and documents stack vertically

    PDFx

    Bundle many PDFs into one valid PDF

    Bundles many PDFs into one file that is still a valid PDF; its viewer splits them back

    Use in the browser
    ★ 1.1k▲ 1 HN
    CROSS-SIGNAL GitHub + Show HNPRODUCTIVITY · GitHub · Show HN · MIT · kept 2026.09.14
  41. 41Solar Wanderer: Earth seen from the Moon's surface, with the Moon info panel (Chinese UI)

    Solar Wanderer

    Real-time 1:1 solar system, no install

    1:1 real-time solar system in the browser, driven by NASA JPL ephemerides; phone-friendly

    Use in the browser
    ★ 764
    BACK CATALOGEDUCATION · GitHub · MIT · kept 2026.09.14
  42. 42Design Studio AI workspace: a 'What should we create?' prompt box in the centre, six starter templates below.

    Design Studio AI

    Design workspace for people and agents

    Lets people and agents edit the same web, slide, 3D and video designs.

    Use in the browser
    ★ 227
    DESIGN · GitHub · MIT · kept 2026.09.14
  43. 43PDF Pocket Tools on itch.io: free-demo note and feature list left, two app screenshots right, a Buy Now $1.00 button below.

    PDF Pocket Tools

    PRODUCTIVITY

    Merges, splits, rotates and reorders PDFs from one offline HTML file.

    Use in the browser
    ▲ 2 HN
    NEW 1h OLD WHEN SEENPRODUCTIVITY · Show HN · kept 2026.09.14
  44. 44Programming Museum playground page: 'The Children's Playground' heading on black, a number-guessing game below.

    Programming Museum

    EDUCATION

    Hangs real, runnable source code in frames you walk past room by room.

    Use in the browser
    ▲ 5 HN
    NEW 0h OLD WHEN SEENEDUCATION · Show HN · kept 2026.09.14