A small tool to view real-world ActivityPub objects as JSON! Enter a URL
or username from Mastodon or a similar service below, and we'll send a
request with
the right
Accept
header
to the server to view the underlying object.
{
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{
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"atomUri": "ostatus:atomUri",
"inReplyToAtomUri": "ostatus:inReplyToAtomUri",
"conversation": "ostatus:conversation",
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"toot": "http://joinmastodon.org/ns#",
"votersCount": "toot:votersCount",
"blurhash": "toot:blurhash",
"focalPoint": {
"@container": "@list",
"@id": "toot:focalPoint"
},
"Hashtag": "as:Hashtag"
}
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"id": "https://mastodon.social/users/anatudor/statuses/114483459910678321",
"type": "Note",
"summary": null,
"inReplyTo": null,
"published": "2025-05-10T12:09:25Z",
"url": "https://mastodon.social/@anatudor/114483459910678321",
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],
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"content": "<p>A little helper/ explainer demo on <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@codepen\" class=\"u-url mention\">@<span>codepen</span></a></span>: Polar (r, θ) ➞ Cartesian (x, y) coordinates<br /><a href=\"https://codepen.io/thebabydino/pen/KNxXZJ\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">codepen.io/thebabydino/pen/KNx</span><span class=\"invisible\">XZJ</span></a></p><p>Drag the sliders to see how the result changes.</p><p><a href=\"https://mastodon.social/tags/CSS\" class=\"mention hashtag\" rel=\"tag\">#<span>CSS</span></a> <a href=\"https://mastodon.social/tags/SVG\" class=\"mention hashtag\" rel=\"tag\">#<span>SVG</span></a> <a href=\"https://mastodon.social/tags/Maths\" class=\"mention hashtag\" rel=\"tag\">#<span>Maths</span></a> <a href=\"https://mastodon.social/tags/trigonometry\" class=\"mention hashtag\" rel=\"tag\">#<span>trigonometry</span></a> <a href=\"https://mastodon.social/tags/coding\" class=\"mention hashtag\" rel=\"tag\">#<span>coding</span></a> <a href=\"https://mastodon.social/tags/web\" class=\"mention hashtag\" rel=\"tag\">#<span>web</span></a> <a href=\"https://mastodon.social/tags/webDev\" class=\"mention hashtag\" rel=\"tag\">#<span>webDev</span></a> <a href=\"https://mastodon.social/tags/webDevelopment\" class=\"mention hashtag\" rel=\"tag\">#<span>webDevelopment</span></a> <a href=\"https://mastodon.social/tags/dev\" class=\"mention hashtag\" rel=\"tag\">#<span>dev</span></a> <a href=\"https://mastodon.social/tags/code\" class=\"mention hashtag\" rel=\"tag\">#<span>code</span></a> <a href=\"https://mastodon.social/tags/frontend\" class=\"mention hashtag\" rel=\"tag\">#<span>frontend</span></a> <a href=\"https://mastodon.social/tags/javascript\" class=\"mention hashtag\" rel=\"tag\">#<span>javascript</span></a> <a href=\"https://mastodon.social/tags/JS\" class=\"mention hashtag\" rel=\"tag\">#<span>JS</span></a></p>",
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"en": "<p>A little helper/ explainer demo on <span class=\"h-card\" translate=\"no\"><a href=\"https://fosstodon.org/@codepen\" class=\"u-url mention\">@<span>codepen</span></a></span>: Polar (r, θ) ➞ Cartesian (x, y) coordinates<br /><a href=\"https://codepen.io/thebabydino/pen/KNxXZJ\" target=\"_blank\" rel=\"nofollow noopener\" translate=\"no\"><span class=\"invisible\">https://</span><span class=\"ellipsis\">codepen.io/thebabydino/pen/KNx</span><span class=\"invisible\">XZJ</span></a></p><p>Drag the sliders to see how the result changes.</p><p><a href=\"https://mastodon.social/tags/CSS\" class=\"mention hashtag\" rel=\"tag\">#<span>CSS</span></a> <a href=\"https://mastodon.social/tags/SVG\" class=\"mention hashtag\" rel=\"tag\">#<span>SVG</span></a> <a href=\"https://mastodon.social/tags/Maths\" class=\"mention hashtag\" rel=\"tag\">#<span>Maths</span></a> <a href=\"https://mastodon.social/tags/trigonometry\" class=\"mention hashtag\" rel=\"tag\">#<span>trigonometry</span></a> <a href=\"https://mastodon.social/tags/coding\" class=\"mention hashtag\" rel=\"tag\">#<span>coding</span></a> <a href=\"https://mastodon.social/tags/web\" class=\"mention hashtag\" rel=\"tag\">#<span>web</span></a> <a href=\"https://mastodon.social/tags/webDev\" class=\"mention hashtag\" rel=\"tag\">#<span>webDev</span></a> <a href=\"https://mastodon.social/tags/webDevelopment\" class=\"mention hashtag\" rel=\"tag\">#<span>webDevelopment</span></a> <a href=\"https://mastodon.social/tags/dev\" class=\"mention hashtag\" rel=\"tag\">#<span>dev</span></a> <a href=\"https://mastodon.social/tags/code\" class=\"mention hashtag\" rel=\"tag\">#<span>code</span></a> <a href=\"https://mastodon.social/tags/frontend\" class=\"mention hashtag\" rel=\"tag\">#<span>frontend</span></a> <a href=\"https://mastodon.social/tags/javascript\" class=\"mention hashtag\" rel=\"tag\">#<span>javascript</span></a> <a href=\"https://mastodon.social/tags/JS\" class=\"mention hashtag\" rel=\"tag\">#<span>JS</span></a></p>"
},
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"type": "Document",
"mediaType": "image/png",
"url": "https://files.mastodon.social/media_attachments/files/114/483/455/706/955/037/original/e7c5423f116eef00.png",
"name": "Screenshot of demo. For a radius of r = 400 (px) and an angle θ = 60°, we have:\nx = r·cos(θ) = 400·cos(60°) = 200\ny = r·sin(θ) = 400·sin(60°) = 346",
"blurhash": "U~OzSsj[j[j[Rjayayjt00ayayayayfQj[fQ",
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"name": "@codepen@fosstodon.org"
},
{
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"href": "https://mastodon.social/tags/css",
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"name": "#web"
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{
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},
{
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{
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{
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"name": "#code"
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{
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{
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"shares": {
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