6,586 listed
Artifacts
Free tools that open in your browser: calculators, converters, formatters, PDF and image helpers, Hugging Face Spaces and Claude artifacts. Filter by category, AI-powered or plain, no sign-up, and tools that run in your browser; every page links to the live tool and says what it needs.
Showing 1–24 of 26
- 0.590score
Paste a CSV, Get a Codebook
zoltlabs
Reads a CSV in the page and reports each column's type, gaps, spread and outliers, then drafts a data dictionary to copy.
ArtifactNo sign-upIn-browserdata tools - 0.588score
Incident Severity Wizard
zoltlabs
Keyboard-only questionnaire that maps an outage to SEV1 through SEV4, lists the rules that fired and drafts the channel message.
ArtifactNo sign-upbusiness finance - 0.588score
Why Adding a Person Didn't Help
zoltlabs
Animated support-desk model using Erlang C that shows waits exploding near full utilisation and how much an extra agent helps.
ArtifactNo sign-upcalculators - 0.566score
NextArtifacts
etrobot
A Next.js take on Claude Artifacts, built in the style of llamacoder.
Artifact★ 26ai assistants - 0.478score
Local Directory Explorer
Simon Willison
Lets you pick a local folder and browse and search its file tree in the browser.
ArtifactNo sign-upIn-browserdeveloper tools - 0.477score
Avatar Cropper
Simon Willison
Pick or drop an image and crop it into a square profile avatar.
ArtifactNo sign-updesign media - 0.477score
Bluesky Thread Viewer
Simon Willison
Loads a full Bluesky thread with nested or chronological views and media.
ArtifactNo sign-upweb utilities - 0.477score
Bullish vs Bearish Guide
Simon Willison
Animated bull and bear visuals to remember the difference between the two market sentiments.
ArtifactNo sign-upeducation - 0.477score
Census Explorer (Claude build)
Simon Willison
Search places and view American Community Survey demographics through the Census Reporter API.
ArtifactNo sign-updata tools - 0.477score
CSS Grid Lanes Demo
Simon Willison
Shows the display: grid-lanes masonry polyfill working across browsers.
ArtifactNo sign-upeducation - 0.477score
CSS Text Wrapping Guide
Simon Willison
Interactive guide to word-wrap, word-break, white-space, hyphens and text-wrap CSS properties.
ArtifactNo sign-upeducation - 0.477score
Hacker News Filtered
Simon Willison
Latest Hacker News stories with topics you list filtered out.
ArtifactNo sign-upweb utilities - 0.477score
Hacker News Thread Export
Simon Willison
Exports a Hacker News discussion with its nested comments in readable form.
ArtifactNo sign-upweb utilities - 0.477score
Hugging Face Model Storage Checker
Simon Willison
Adds up the storage size of a Hugging Face model repository from its URL or path.
ArtifactNo sign-upai assistants - 0.477score
JSON String Extractor
Simon Willison
Pulls out every string in a JSON document that is long or contains line breaks.
ArtifactNo sign-updata tools - 0.477score
JSON Transcript to Markdown
Simon Willison
Turns JSON audio transcripts with speakers and timestamps into Markdown.
ArtifactNo sign-upconverters - 0.477score
Keyboard Debugger
Simon Willison
Displays key names and key codes for each key you press.
ArtifactNo sign-updeveloper tools - 0.477score
LLM Token Usage Calculator
Simon Willison
Aggregates token counts from pasted llm logs output across Claude and other models.
ArtifactNo sign-upai assistants - 0.477score
Mask and Box Visualizer
Simon Willison
Overlays bounding boxes and PNG masks from JSON onto an image, with several coordinate origins.
ArtifactNo sign-updesign media - 0.477score
New Yorker Style Converter
Simon Willison
Rewrites text with diaereses, curly quotes and em dashes in the manner of New Yorker typography.
ArtifactNo sign-uptext writing - 0.477score
Passkey Demo
Simon Willison
Try registering and signing in with WebAuthn passkeys right in the browser.
ArtifactNo sign-updeveloper tools - 0.477score
Red Annotation Extractor
Simon Willison
Isolates the red marks from an annotated image and overlays them on the original photo.
ArtifactNo sign-updesign media - 0.477score
Rich Paste to Clean HTML
Simon Willison
Converts rich clipboard content into HTML limited to semantic tags like paragraphs, headings, lists and links.
ArtifactNo sign-upconverters - 0.477score
Rich Text HTML Extractor
Simon Willison
Shows the HTML source behind formatted text you paste into the page.
ArtifactNo sign-updeveloper tools