diff --git a/site/src/components/Repl/Output/PropEditor.svelte b/site/src/components/Repl/Output/PropEditor.svelte
deleted file mode 100644
index 4ea6ce5e7f..0000000000
--- a/site/src/components/Repl/Output/PropEditor.svelte
+++ /dev/null
@@ -1,71 +0,0 @@
-<script>
-	import { createEventDispatcher } from 'svelte';
-	import * as fleece from 'golden-fleece';
-	import CodeMirror from '../CodeMirror.svelte';
-
-	const dispatch = createEventDispatcher();
-
-	export let value;
-
-	let error;
-	let code;
-
-	if (value === undefined) {
-		code = 'undefined';
-	} else {
-		code = fleece.stringify(value);
-		console.log({ value, code });
-	}
-
-	$: try {
-		value = fleece.evaluate(code);
-	} catch (e) {
-		error = e;
-	}
-
-	let previous_code;
-
-	function handleChange(event) {
-		try {
-			const value = fleece.evaluate(event.detail.value);
-			code = previous_code = event.detail.value;
-			error = null;
-			dispatch('change', { value });
-		} catch (e) {
-			error = e;
-		}
-	}
-
-	function stringify(value) {
-		if (value === undefined) return '<undefined>';
-
-		const code = previous_code
-			? fleece.patch(previous_code, value)
-			: fleece.stringify(value);
-
-		previous_code = code;
-		return code;
-	}
-</script>
-
-<style>
-	.prop-editor {
-		border: 1px solid #eee;
-	}
-
-	.error {
-		background-color: rgba(218, 16, 96, 0.1);
-		border: 1px solid #da106e;
-	}
-</style>
-
-<div class="prop-editor" class:error title="{error && error.message || ''}">
-	<CodeMirror
-		mode="json"
-		code={stringify(value)}
-		lineNumbers={false}
-		on:change={handleChange}
-		tab={false}
-		flex
-	/>
-</div>
\ No newline at end of file
diff --git a/site/src/components/Repl/Output/ReplProxy.js b/site/src/components/Repl/Output/ReplProxy.js
index 44b77b84dd..7ae56e35b7 100644
--- a/site/src/components/Repl/Output/ReplProxy.js
+++ b/site/src/components/Repl/Output/ReplProxy.js
@@ -57,11 +57,6 @@ export default class ReplProxy {
 			this.handleCommandMessage(event.data);
 		}
 
-		if (action === 'prop_update') {
-			const { prop, value } = args;
-			this.handlers.onPropUpdate(prop, value)
-		}
-
 		if (action === 'fetch_progress') {
 			this.handlers.onFetchProgress(args.remaining)
 		}
@@ -71,14 +66,6 @@ export default class ReplProxy {
 		return this.iframeCommand('eval', { script });
 	}
 
-	setProp(prop, value) {
-		return this.iframeCommand('set_prop', {prop, value})
-	}
-
-	bindProps(props) {
-		return this.iframeCommand('bind_props', { props })
-	}
-
 	handleLinks() {
 		return this.iframeCommand('catch_clicks', {});
 	}
diff --git a/site/src/components/Repl/Output/Viewer.svelte b/site/src/components/Repl/Output/Viewer.svelte
index eec904526f..08ae0f9639 100644
--- a/site/src/components/Repl/Output/Viewer.svelte
+++ b/site/src/components/Repl/Output/Viewer.svelte
@@ -6,9 +6,8 @@
 	import { decode } from 'sourcemap-codec';
 
 	const dispatch = createEventDispatcher();
-	const { bundle, values, navigate } = getContext('REPL');
+	const { bundle, navigate } = getContext('REPL');
 
-	export let props;
 	export let error; // TODO should this be exposed as a prop?
 
 	export function setProp(prop, value) {
@@ -26,13 +25,6 @@
 
 	onMount(() => {
 		proxy = new ReplProxy(iframe, {
-			onPropUpdate: (prop, value) => {
-				dispatch('binding', { prop, value });
-				values.update(values => Object.assign({}, values, {
-					[prop]: value
-				}));
-			},
-
 			onFetchProgress: progress => {
 				pending_imports = progress;
 			}
@@ -84,13 +76,10 @@
 				window._svelteTransitionManager = null;
 
 				window.component = new SvelteComponent({
-					target: document.body,
-					props: ${JSON.stringify($values)}
+					target: document.body
 				});
 			`);
 
-			await proxy.bindProps(props);
-
 			error = null;
 		} catch (e) {
 			const loc = getLocationFromStack(e.stack, $bundle.dom.map);
diff --git a/site/src/components/Repl/Output/index.svelte b/site/src/components/Repl/Output/index.svelte
index ce67ca5f7a..9212b516ed 100644
--- a/site/src/components/Repl/Output/index.svelte
+++ b/site/src/components/Repl/Output/index.svelte
@@ -4,7 +4,6 @@
 	import Viewer from './Viewer.svelte';
 	import CompilerOptions from './CompilerOptions.svelte';
 	import Compiler from './Compiler.js';
-	import PropEditor from './PropEditor.svelte';
 	import CodeMirror from '../CodeMirror.svelte';
 
 	const { values, register_output } = getContext('REPL');
@@ -13,9 +12,6 @@
 	export let sourceErrorLoc;
 	export let runtimeError;
 	export let embedded;
-	export let show_props;
-
-	let props;
 
 	let compile_options = {
 		generate: 'dom',
@@ -39,7 +35,6 @@
 
 			js_editor.set(compiled.js, 'js');
 			css_editor.set(compiled.css, 'css');
-			if (compiled.props) props = compiled.props;
 		},
 
 		update: async selected => {
@@ -49,7 +44,6 @@
 
 			js_editor.update(compiled.js);
 			css_editor.update(compiled.css);
-			if (compiled.props) props = compiled.props;
 		}
 	});
 
@@ -119,19 +113,6 @@
 		color: var(--text);
 	}
 
-	.props {
-		display: grid;
-		padding: 0.5em;
-		grid-template-columns: auto 1fr;
-		grid-auto-rows: min-content;
-		grid-gap: 0.5em;
-		overflow-y: auto;
-	}
-
-	.props code {
-		top: .1rem;
-	}
-
 	.tab-content {
 		position: absolute;
 		width: 100%;
@@ -166,44 +147,11 @@
 
 <!-- component viewer -->
 <div class="tab-content" class:visible="{view === 'result'}">
-	<SplitPane type="vertical" pos={67} fixed={!show_props} fixed_pos={100}>
-		<div slot="a">
-			<Viewer
-				bind:this={viewer}
-				{props}
-				bind:error={runtimeError}
-				on:binding="{e => setPropFromViewer(e.detail.prop, e.detail.value)}"
-			/>
-		</div>
-
-		<section slot="b">
-			{#if show_props}
-				<h3>Props editor</h3>
-
-				{#if props}
-					{#if props.length > 0}
-						<div class="props">
-							{#each props.sort() as prop (prop)}
-								<code style="display: block; whitespace: pre;">{prop}</code>
-
-								<!-- TODO `bind:this={propEditors[prop]}` — currently fails -->
-								<PropEditor
-									value={$values[prop]}
-									on:change="{e => setPropFromEditor(prop, e.detail.value)}"
-								/>
-							{/each}
-						</div>
-					{:else}
-						<div style="padding: 0.5em" class="linkify">
-							<!-- TODO explain distincion between logic-less and logic-ful components? -->
-							<!-- TODO style the <a> so it looks like a link -->
-							<p style="font-size: 1.3rem; color: var(--second)">This component has no props — <a href="docs#external-properties">declare props with the export keyword</a></p>
-						</div>
-					{/if}
-				{/if}
-			{/if}
-		</section>
-	</SplitPane>
+	<Viewer
+		bind:this={viewer}
+		bind:error={runtimeError}
+		on:binding="{e => setPropFromViewer(e.detail.prop, e.detail.value)}"
+	/>
 </div>
 
 <!-- js output -->
diff --git a/site/src/components/Repl/index.svelte b/site/src/components/Repl/index.svelte
index 30757f1868..aa9a9fed93 100644
--- a/site/src/components/Repl/index.svelte
+++ b/site/src/components/Repl/index.svelte
@@ -11,7 +11,6 @@
 	export let version = 'beta'; // TODO change this to latest when the time comes
 	export let embedded = false;
 	export let orientation = 'columns';
-	export let show_props = true;
 
 	export function toJSON() {
 		// TODO there's a bug here — Svelte hoists this function because
@@ -22,14 +21,12 @@
 
 		return {
 			imports: $bundle.imports,
-			components: $components,
-			values: $values
+			components: $components
 		};
 	}
 
 	export function set(data) {
 		components.set(data.components);
-		values.set(data.values);
 		selected.set(data.components[0]);
 
 		module_editor.set($selected.source, $selected.type);
@@ -40,7 +37,6 @@
 		const { name, type } = $selected || {};
 
 		components.set(data.components);
-		values.set(data.values);
 
 		const matched_component = data.components.find(file => file.name === name && file.type === type);
 		selected.set(matched_component || data.components[0]);
@@ -57,7 +53,6 @@
 	const dispatch = createEventDispatcher();
 
 	const components = writable([]);
-	const values = writable({});
 	const selected = writable(null);
 	const bundle = writable(null);
 
@@ -66,7 +61,6 @@
 
 	setContext('REPL', {
 		components,
-		values,
 		selected,
 		bundle,
 
@@ -227,7 +221,7 @@
 			</section>
 
 			<section slot=b style='height: 100%;'>
-				<Output {version} {embedded} {show_props}/>
+				<Output {version} {embedded}/>
 			</section>
 		</SplitPane>
 	</div>
diff --git a/site/src/routes/repl/_components/AppControls/index.svelte b/site/src/routes/repl/_components/AppControls/index.svelte
index 9f1b6a47a7..427137ae45 100644
--- a/site/src/routes/repl/_components/AppControls/index.svelte
+++ b/site/src/routes/repl/_components/AppControls/index.svelte
@@ -1,5 +1,4 @@
 <script>
-	import * as fleece from 'golden-fleece';
 	import { createEventDispatcher } from 'svelte';
 	import UserMenu from './UserMenu.svelte';
 	import Icon from '../../../../components/Icon.svelte';
@@ -54,8 +53,7 @@
 	async function fork(intentWasSave) {
 		saving = true;
 
-		const { components, values } = repl.toJSON();
-		const json5 = fleece.stringify(values); // TODO preserve the original code
+		const { components } = repl.toJSON();
 
 		try {
 			const r = await fetch(`gist/create`, {
@@ -63,8 +61,7 @@
 				credentials: 'include',
 				body: JSON.stringify({
 					name,
-					components,
-					json5
+					components
 				})
 			});
 
@@ -106,8 +103,7 @@
 
 		saving = true;
 
-		const { components, values } = repl.toJSON();
-		const json5 = fleece.stringify(values); // TODO preserve the original code
+		const { components } = repl.toJSON();
 
 		try {
 			const files = {};
@@ -131,13 +127,6 @@
 				}
 			});
 
-			if (!gist.files['data.json5'] || json5 !== gist.files['data.json5'].content) {
-				files['data.json5'] = { content: json5 };
-			}
-
-			// data.json has been deprecated in favour of data.json5
-			if (gist.files['data.json']) gist.files['data.json'] = null;
-
 			const r = await fetch(`gist/${gist.id}`, {
 				method: 'PATCH',
 				credentials: 'include',
@@ -171,7 +160,7 @@
 	async function download() {
 		downloading = true;
 
-		const { components, imports, values } = repl.toJSON();
+		const { components, imports } = repl.toJSON();
 
 		const files = await (await fetch('/svelte-app.json')).json();
 
@@ -192,8 +181,7 @@
 			path: `src/main.js`, data: `import App from './App.svelte';
 
 var app = new App({
-	target: document.body,
-	props: ${JSON.stringify(values, null, '\t').replace(/\n/g, '\n\t')}
+	target: document.body
 });
 
 export default app;` });
diff --git a/site/src/routes/repl/embed.svelte b/site/src/routes/repl/embed.svelte
index fc74d8df5f..0dc123ce22 100644
--- a/site/src/routes/repl/embed.svelte
+++ b/site/src/routes/repl/embed.svelte
@@ -10,7 +10,6 @@
 
 <script>
 	import { onMount } from 'svelte';
-	import * as fleece from 'golden-fleece';
 	import Repl from '../../components/Repl/index.svelte';
 
 	export let version, gist, demo;
@@ -33,8 +32,6 @@
 
 				name = description;
 
-				let values = {};
-
 				const components = Object.keys(files)
 					.map(file => {
 						const dot = file.lastIndexOf('.');
@@ -42,11 +39,6 @@
 
 						const source = files[file].content;
 
-						// while we're here...
-						if (file === 'data.json' || file === 'data.json5') {
-							values = tryParseData(source) || {};
-						}
-
 						return {
 							name: file.slice(0, dot),
 							type: file.slice(dot + 1),
@@ -63,7 +55,7 @@
 						return a.name < b.name ? -1 : 1;
 					});
 
-				repl.set({ components, values });
+				repl.set({ components });
 			});
 		} else if (demo) {
 			const url = `api/examples/${demo}`;
@@ -73,21 +65,12 @@
 					const data = await response.json();
 
 					repl.set({
-						values: tryParseData(data.json5) || {}, // TODO make this more error-resistant
 						components: data.components
 					});
 				}
 			});
 		}
 	});
-
-	function tryParseData(json5) {
-		try {
-			return fleece.evaluate(json5);
-		} catch (err) {
-			return null;
-		}
-	}
 </script>
 
 <style>
diff --git a/site/src/routes/repl/index.svelte b/site/src/routes/repl/index.svelte
index 4adf5368d0..c2578e40cb 100644
--- a/site/src/routes/repl/index.svelte
+++ b/site/src/routes/repl/index.svelte
@@ -11,7 +11,6 @@
 <script>
 	import { onMount } from 'svelte';
 	import { locate } from 'locate-character';
-	import * as fleece from 'golden-fleece';
 	import AppControls from './_components/AppControls/index.svelte';
 	import Repl from '../../components/Repl/index.svelte';
 	import examples from '../../../content/examples/manifest.json';
@@ -60,8 +59,6 @@
 
 				name = description;
 
-				let values = {};
-
 				const components = Object.keys(files)
 					.map(file => {
 						const dot = file.lastIndexOf('.');
@@ -69,11 +66,6 @@
 
 						const source = files[file].content;
 
-						// while we're here...
-						if (file === 'data.json' || file === 'data.json5') {
-							values = tryParseData(source) || {};
-						}
-
 						let type = file.slice(dot + 1);
 						if (type === 'html') type = 'svelte';
 
@@ -93,7 +85,7 @@
 						return a.name < b.name ? -1 : 1;
 					});
 
-				repl.set({ components, values });
+				repl.set({ components });
 			});
 		}
 	});
@@ -112,7 +104,6 @@
 				console.log(data.components);
 
 				repl.set({
-					values: tryParseData(data.json5) || {}, // TODO make this more error-resistant
 					components: data.components
 				});
 
@@ -128,14 +119,6 @@
 		gist_id = gist.id;
 	}
 
-	function tryParseData(json5) {
-		try {
-			return fleece.evaluate(json5);
-		} catch (err) {
-			return null;
-		}
-	}
-
 	$: if (process.browser && demo) {
 		load_demo(demo);
 	}
diff --git a/site/src/routes/tutorial/[slug]/index.svelte b/site/src/routes/tutorial/[slug]/index.svelte
index 1b71b08b94..eee912aaec 100644
--- a/site/src/routes/tutorial/[slug]/index.svelte
+++ b/site/src/routes/tutorial/[slug]/index.svelte
@@ -258,6 +258,6 @@
 	</div>
 
 	<div class="tutorial-repl">
-		<Repl bind:this={repl} orientation="rows" show_props={false} on:change={handle_change}/>
+		<Repl bind:this={repl} orientation="rows" on:change={handle_change}/>
 	</div>
 </div>
diff --git a/site/static/workers/compiler.js b/site/static/workers/compiler.js
index d234c2a0bb..e919097310 100644
--- a/site/static/workers/compiler.js
+++ b/site/static/workers/compiler.js
@@ -36,16 +36,11 @@ function compile({ id, source, options, entry }) {
 			Object.assign({}, commonCompilerOptions, options)
 		);
 
-		const props = entry
-			? (vars || stats.vars).map(v => v.writable && v.export_name).filter(Boolean) // TODO remove stats post-launch
-			: null;
-
 		return {
 			id,
 			result: {
 				js: js.code,
-				css: css.code || `/* Add a <sty` + `le> tag to see compiled CSS */`,
-				props
+				css: css.code || `/* Add a <sty` + `le> tag to see compiled CSS */`
 			}
 		};
 	} catch (err) {
@@ -57,8 +52,7 @@ function compile({ id, source, options, entry }) {
 			id,
 			result: {
 				js: message,
-				css: message,
-				props: null
+				css: message
 			}
 		};
 	}