Tools

Tire air volume with temperature effects, and weather advice for a ride

• Bicycle Tire Air Volume CalculatorHow much air a bike tire holds, and how temperature shifts the pressure
• Activity Weather AdvisorUS forecast for an activity, plus a prefilled Claude prompt for the best time

Claude log viewers, a skill packager, LLM price tables and small model demos

• Monad BullshitterA 56M-parameter reasoning model on your GPU: confident, methodical, mostly wrong
• Page ScrawlDraw on any web page, note each mark, and hand the marks to Claude or paste them anywhere
• Cross-Origin Fetch ProbeCheck whether a page on this site can fetch a URL with GET, HEAD and Range requests
• Latent CalculatorSmolLM2-135M does arithmetic three ways, one with a calculator wired into its layers
• Embedding InversionBrowse 1,000 recorded attempts to recover a sentence from its embedding, round by round
• Taxonomy SnapType a product phrase, get the nearest of 860 retail categories, in the browser
• Repo SearchSearch 3,510 posts, blog entries, issues and bookmarks from two AT Protocol accounts
• Shell Doc SearchDescribe a task in plain words, get the command-line tool, from 6,397 doc pages
• KB PackerTurn files into a searchable .skill bundle an AI agent can install, in the browser
• cc-inspectPython script: Claude Code session logs to a markdown report, no LLM calls by default
• Token Salary CalculatorCompares the cost of N tasks a day in salaries and in AI tokens, in five scenarios
• Claude Skills ReleasesEvery release of claude-skills, sortable A-Z or by date, with zip downloads
• Claude Audit Log ViewerOpen a Claude Enterprise audit-log zip: stats, filters, search, CSV export
• Claude API Response ViewerView a Claude API response saved in a gist: thinking, web searches, cited text
• Research Report ViewerOpen a JSON research report: sections, TLDRs, citations; export as HTML or Markdown
• Claude PrunerKeep only the messages, artifacts and tool calls you pick from a Claude.ai chat
• LiteLLM Model PricesSortable, filterable LLM prices and context windows, live from LiteLLM's data

PDF, OCR, CSV, photo and link tools that run in the browser

• WordCraftOpen-source Word-style editor in Rust, running in your browser as WebAssembly
• Image UpscalerEnlarge a photo 2x to 4x with Real-ESRGAN on WebGPU, nothing leaves your browser
• PDF to WebpageRebuild a PDF as a phone-readable page: reflowed text, tables, images, equations
• Anything to TextOCR for images and PDFs, speech-to-text for audio and video, in your browser
• SnapScan Photo ScannerScan printed photos: straighten, adjust color, set date and GPS, save a JPEG
• Gist EncryptionEncrypt text with AES-256-GCM in the browser; share as a gist, key in the URL fragment
• PDF Text ExtractorExtract PDF text as Markdown, JSON or plain text for LLMs, from a file or ?url= link
• HTML Trimmer for LLMsPaste HTML, untick elements or keep the first few repeated items and rows, then copy it
• AWS Region Latency MapMap of 32 AWS regions; click one for its median latency to the rest (May 2025 data)
• PDF Reader and HighlighterAnnotate a PDF beside its extracted text: green or red marks, comments, JSON export
• PDF CompressorShrink a PDF with Ghostscript compiled to WebAssembly, with four quality presets
• CSV to Excel ConverterDrop, pick or paste CSV, download .xlsx; converted in the browser with SheetJS
• OneNote Link ForwarderTurn a onenote: link into an https link that opens the OneNote desktop app
• Bookmarklet InstallerPick a bookmarklet from GitHub or paste JS, minify with Terser, drag to install
• Webex Space ForwarderTurn a webexteams:// link or ?space=ID into an https link that opens the Webex app

Zoomable Bach chorales, a code repository, two maps of Norway and one of Ann Arbor

• Ann Arbor Real EstateParcels, zoning, flood zones and listings within 10 miles of downtown Ann Arbor
• Norway Property MapEvery registered property in Norway on a map; click a parcel for its number and area
• Bach Chorale Wall351 Bach chorales on one zoomable wall, with synthesized organ playback
• claude-skills Code WallEvery source file of oaustegard/claude-skills, zoomable, colored by syntax or age
• Kristiania 1917 and Oslo TodayA 1917 map of Kristiania (now Oslo) and today's, side by side, overlaid or split

Arcade games for the browser, many steered by tilting your phone, some running on WebGPU

• Tiltgrid '84Roll a glass marble down neon isometric courses by tilting your phone, with a 1984 chip tune
• Comet KeeperTilt the phone back to catch a comet and flick it forward to throw it back at the sentinels
• CareenMatch three where tilting the phone sets which way the tiles fall, drawn as WebGPU gems
• MahjongHong Kong or Taiwanese mahjong against the computer, or with friends who join by text or QR
• PokerHold'em, Omaha, Stud, Razz, Draw and mixed games with buy-ins and rebuys, against the computer or with friends who join by text or QR
• Tilt RallyHold your phone like a steering wheel: turn to steer, tilt for gas and brake, in WebGPU
• LemmingsLemmings in WebGPU compute: one small kernel per lemming state, and 10,000 lemmings at once
• Tilt InvadersSpace Invaders steered by tilting your phone: divers, motherships, a march on the beat
• Prism BreakBrick breaker steered by tilting your phone: glass bricks shatter in WebGPU light, upgrades, a synth score
• Asteroids 3DFirst-person Asteroids in WebGPU: tilt to steer, tap to fire, slide to thrust or brake
• gPu(doom)The Doom engine as WebGPU compute shaders: BSP rendering and the game tic run on the GPU
• Lantern EelSnake in the deep sea, steered by tilting your phone; the light fades the deeper you dive
• ScoopMinesweeper with dog poop: sweep the lawn, bag the heaps, try not to step in one
• SoundingMinesweeper on a WebGPU sea floor: sonar pings, glowing beacons, a chain reaction on a miss
• Tilt ChompPac-Man-style maze chase steered by tilting your phone, drawn in WebGPU with synth sound
• PlumbFalling blocks steered by tilting your phone, over WebGPU dust that pools under real gravity
• Ball MazeTilt your phone to roll a steel ball through endless generated mazes and around holes
• BlasterSpace shooter against descending saucers, with sound effects synthesized in Web Audio
• AsteroidsAsteroids with keyboard, touch or tilt steering, levels and lives, written in Preact

Generative toys, phone gadgets, calculators and math demos

• Glitter JarA jar of GPU glitter: shake your phone to stir it up, tilt to pour it, drag to swirl it
• Soap FilmSoap film on the GPU: tilt to pour it, drag to blow, tap to pop; colour from its thickness
• Raking LightFlat SVG relit on the GPU: shapes rise by paint order and cast shadows from lights you drag
• X-ray glassesLive camera X-ray: a skeleton fitted to a person, cat or dog, drawn over a radiograph view
• Self-Painting SVGAny picture becomes one SVG that sketches itself, paints itself in, then falls apart
• Python on the GPUPython functions compiled to GPU shaders: four simulations and a playground for your own
• Marauder's Map: Orbit EditionLive map of the two space stations and their crews, with how far away they are from you
• Video About Making VideosA 75-second narrated video that is a live web page: every frame is HTML, CSS and SVG
• Fractal DiveEndless WebGL2 zoom into a Julia set or an Apollonian gasket, with an automatic dive mode
• Strudel FMGenerative radio: a program writes house, techno, lo-fi, ambient or dub, four bars at a time
• Catch-Up CalculatorLate for a group ride: time and distance to catch up, speed needed, watts estimate
• Pelican, Bicycle3D pelican in a straw boater pedaling a bicycle along a beach; drag to look, scroll to zoom
• Currents in MotionPhone-steered WebGL flow field: spin, tilt and roll pick the color, shaking speeds it up
• EpicyclesType a word, watch a chain of rotating circles trace it in one line (Fourier transform)
• CurrentsFull-screen WebGL flow field of warped noise that follows the cursor; click changes colors
• tap.localizerTrain a k-nearest-neighbor model to tell where you tap the phone, from accelerometer data
• Snooker Break Simulator2D snooker: a rearmost-red break against Shaun Murphy's third-red break, with aim and spin
• EML CalculatorRewrite exp, ln and arithmetic as trees of one operator: eml(x,y) = exp(x) - ln(y)
• Strudel ComposerRedirects to a claude.ai artifact that turns English into Strudel live-coded music
• Spectral TreeEigenvalue paths of a matrix blend as a rotatable 3D tree; click a tip for its numbers
• Car DashboardPhone HUD from GPS: speed, heading, altitude, grade and trip stats, in mph or km/h
• Car Dashboard (demo)Looping simulated drive through the car dashboard, so it works without GPS
• SpeedometerGPS speed in large mph digits for a windshield HUD; tap to mirror, double tap to rotate
• Cadence for DummiesCount steps or pedal turns over a time, get cadence in BPM and a Spotify playlist prompt
• Generative Typography PlaygroundRandom poems from word fragments, set as flow, cascade, scatter or spiral over particles
• Infinity ShaderFull-screen WebGL shader animation after an equation by XorDev; scroll to zoom
• Unicorn SpotterInstallable map app for unicorn sightings; it runs on generated fake sightings, no backend
• Yin-Yang ImpactsTwo balls bounce inside a yin-yang and dent its boundary like liquid; hold to speed up
• Emoji Collage Maker (categories)The collage maker with checkboxes to limit emojis to categories such as faces or nature
• Webcam Emoji MirrorYour webcam feed redrawn live as a mirrored grid of emojis
• Emoji Collage MakerTurn an uploaded image into a grid of color-matched emojis; download as PNG or SVG
• Age Multiplier CalculatorEnter two birthdates, get your age ratio and the dates it drops to 2x, 3x and so on

Search, list builders, thread viewers and file transfer for Bluesky and the AT Protocol

• Bluesky Answer SearchAnswers quoted word for word from the last 100,000 AI Bluesky posts, kept live on your GPU
• Bluesky List ScoutBuild a list on any topic: learn it from a search, score accounts on your GPU, add picks
• Sky MixtapeTurn your recent Bluesky posts into a playlist, and rate songs to steer the next mix
• My AgentEvery Bluesky post saying “my agent” since 2025, sorted into AI, human and unknown agents
• Like PollPost a Bluesky poll people answer with likes, then count it, dropping anyone who liked twice
• Bluesky Image SearchSearch 16,878 popular Bluesky images by what is in them, indexed on your GPU in the page
• Three Query Embeddershttps://austegard.com/bsky/embedders/
• Bluesky Advanced SearchFill in author, domain, tag, date and language fields to build a bsky.app search URL
• PadA plain-text pad you edit live with others over WebRTC, with no server for the text
• Tangled String EmbedEmbed a Tangled string (a code snippet) in any page; the demo embeds its own source
• Tangled StringsView Tangled strings (snippets stored in ATProto repos) by handle/rkey, at:// URI or URL
• ATProto FileDropSend a file from browser to browser over WebRTC, set up through Bluesky accounts
• Bluesky Image ShowPlay the images from a thread, profile, feed, list or search as a slideshow
• Anything to ListAdd accounts from a starter pack, list, feed, followers, post or search to a list
• Bluesky Engagement WidgetDrop-in widget that shows a post's replies, likes and reposts, with usage notes
• Post Constellation GraphGraph of a post's replies and quote chains that grows as you pan toward unexplored nodes
• Post Constellation (Timeline)The constellation graph with posts placed left to right by time and an optional time axis
• Bluesky Thread ViewerRead a thread as a branching tree, with filters, a quote-stack mode and shareable links
• Bluesky ZeitgeistSamples live Bluesky posts for trending names, then charts how often chosen topics appear
• Engagement Data ProcessorExport a post's replies, quotes or ancestry, or search results, as anonymized JSON
• at-protocol ExtensionChrome extension that opens at:// links in bsky.app; this page shows its README
• The Bsky ReportMost-shared links on Bluesky over 24 hours, built by polling post search per language
• Merge Bluesky ListsMerge another list into one of yours, adding only accounts not already on it
• Starter Pack to ListCopy every member of a starter pack into a new or existing list of yours
• Bluesky GitHub Link SearchSearch Bluesky posts from the last three days that link to github.com, with keywords

Picks from the experiments repo: WebGPU kernels, in-browser models, SVG animation, math

• Images as ShadersA photo as one WGSL shader of soft ellipses that paints itself in. Upload yours; AVIF wins
• GPU BridgeRuns WebGPU jobs that Claude Code sessions push to a repo, on this machine's GPU
• Bit-Plane Dispersion ScanExact int8 top-K search in WebGPU that reads the corpus one bit plane at a time
• RefractometerSweeps WebGPU kernel settings on your GPU, checks each, keeps the fastest per adapter
• Two PrismsFive-band spectral audio processor in one WGSL dispatch, with a live waterfall
• Image to SVG in the browserimage-to-svg ported to the page: k-means in WGSL, edge tracing, compact SVG output
• Live camera taggerPhone camera tagging on WebGPU: MobileCLIP-S0 matches each frame against 4,585 tags
• Starry Night, painting itselfA traced Starry Night sketches, paints and dismantles itself: one SVG, no JavaScript
• Warhol palette cycleOne traced cat drawn four times, cycling four palettes in 72 KB of SVG, no JavaScript
• EG2 query encoder in hand-written WGSLA custom WebGPU engine benchmarked against onnxruntime-web on the same 25 MB encoder
• EG2 training targets on WebGPUEmbeds 110,605 query-like texts with EmbeddingGemma 2 on your GPU and saves int8 shards
• Navier–Stokes term by termWebGPU explainer of the four terms, Reynolds number, vortex stretching and blowup
• EmbeddingGemma 2 search on WebGPUEmbeddingGemma 2 in the browser, with 2-bit codes and the corpus scan in WebGPU kernels
• Delegation skill map14 agent and delegation skills compared: boundaries, a decision path, cut candidates
• The Second Sky140 constellations of an invented people, drawn on the real stars by 1,843 Haiku calls
• Strudel FM, before and afterThe Strudel FM lead before and after its melody rewrite, with seeded variants
• Geezer GoonAnimated music video for the Wednesday-ride song, driven by the ride's Strava data
• Procedural LionA cartoon lion rebuilt in three.js, with about 3,000 swept-tube hair strands
• Latent Calculator explainerHow a calculator wired into SmolLM2-135M reads operands at layer 16 and writes back
• A Growth Race for Erdős–GyárfásResearch note with partial results on an open problem in graph theory

Essays on US home prices and AI deployment, and a QR label maker for lost property

• Rain on RockSeven-slide visual essay that uses rain on parched ground as a metaphor for AI deployment
• Five Years of Your LifeCharted essay on the US home price to income ratio since 1960, nationally and by metro area
• Found Item QR GeneratorMake QR labels for your belongings; a finder's scan files a GitHub issue for you