Convert a Lottie file to a dev-friendly, near 1:1 parallel of an After Effects file.
# coming soon- Convert any Lottie file to a more verbose, easier to debug, and human-readable version
- Allow conversion from Lottie => Readable-Lottie and Readable-Lottie => Lottie
- Create a library of methods for crawling through or modifying a Readable-Lottie file, similar to the After Effects Scripting API.
- Generate
lottiePathstring for every readable prop/attribute, so devs can know the direct route to access any readable prop within the original Lottie file - Use Readable-Lottie as the foundation of browser Lottie file editors
- Use Readable-Lottie as the foundation for a Reverse-Lottie panel, allowing you to drag and drop a Lottie file and construct it from scratch at the click of a button in After Effects
A basic Lottie file with a single group, 3 shapes, and 3 keyframes is very esoteric and hard to understand:
{
"v": "5.5.9",
"fr": 30,
"ip": 0,
"op": 41,
"w": 960,
"h": 560,
"nm": "Comp 2",
"ddd": 0,
"assets": [],
"layers": [
{
"ddd": 0,
"ind": 1,
"ty": 4,
"nm": "groupTest",
"sr": 1,
"ks": {
"o": {
"a": 0,
"k": 100,
"ix": 11
},
"r": {
"a": 0,
"k": 0,
"ix": 10
},
"p": {
"a": 1,
"k": [
{
"i": {
"x": 0.833,
"y": 0.833
},
"o": {
"x": 0.167,
"y": 0.167
},
"t": 0,
"s": [300, 219, 0],
"to": null,
"ti": null
},
{
"i": {
"x": 0.833,
"y": 0.833
},
"o": {
"x": 0.167,
"y": 0.167
},
"t": 20,
"s": [300, 115, 0],
"to": null,
"ti": null
},
{
"t": 40,
"s": [300, 219, 0]
}
],
"ix": 2
},
"a": {
"a": 0,
"k": [86, -182, 0],
"ix": 1
},
"s": {
"a": 0,
"k": [100, 100, 100],
"ix": 6
}
},
"ao": 0,
"shapes": [
{
"ty": "gr",
"it": [
{
"ty": "rc",
"d": 1,
"s": {
"a": 0,
"k": [23.531, 23.531],
"ix": 2
},
"p": {
"a": 0,
"k": [86, -182],
"ix": 3
},
"r": {
"a": 0,
"k": 0,
"ix": 4
},
"nm": "Rectangle Path 1",
"mn": "ADBE Vector Shape - Rect",
"hd": false,
"_render": true
},
{
"ty": "fl",
"c": {
"a": 0,
"k": [0.698039233685, 0.698039233685, 0.278431385756, 1],
"ix": 4
},
"o": {
"a": 0,
"k": 100,
"ix": 5
},
"r": 1,
"bm": 0,
"nm": "Fill 1",
"mn": "ADBE Vector Graphic - Fill",
"hd": false,
"_render": true
}
],
"nm": "Group 1",
"np": 2,
"cix": 2,
"bm": 0,
"ix": 1,
"mn": "ADBE Vector Group",
"hd": false,
"_render": true
},
{
"ty": "gr",
"it": [
{
"ty": "rc",
"d": 1,
"s": {
"a": 0,
"k": [51.564, 51.564],
"ix": 2
},
"p": {
"a": 0,
"k": [86, -182],
"ix": 3
},
"r": {
"a": 0,
"k": 0,
"ix": 4
},
"nm": "Rectangle Path 1",
"mn": "ADBE Vector Shape - Rect",
"hd": false,
"_render": true
},
{
"ty": "fl",
"c": {
"a": 0,
"k": [0.525490224361, 0.262745112181, 0.262745112181, 1],
"ix": 4
},
"o": {
"a": 0,
"k": 100,
"ix": 5
},
"r": 1,
"bm": 0,
"nm": "Fill 1",
"mn": "ADBE Vector Graphic - Fill",
"hd": false,
"_render": true
}
],
"nm": "Group 2",
"np": 2,
"cix": 2,
"bm": 0,
"ix": 2,
"mn": "ADBE Vector Group",
"hd": false,
"_render": true
},
{
"ty": "gr",
"it": [
{
"ty": "rc",
"d": 1,
"s": {
"a": 0,
"k": [94, 94],
"ix": 2
},
"p": {
"a": 0,
"k": [86, -182],
"ix": 3
},
"r": {
"a": 0,
"k": 0,
"ix": 4
},
"nm": "Rectangle Path 1",
"mn": "ADBE Vector Shape - Rect",
"hd": false,
"_render": true
},
{
"ty": "fl",
"c": {
"a": 0,
"k": [0.698039233685, 0.698039233685, 0.278431385756, 1],
"ix": 4
},
"o": {
"a": 0,
"k": 100,
"ix": 5
},
"r": 1,
"bm": 0,
"nm": "Fill 1",
"mn": "ADBE Vector Graphic - Fill",
"hd": false,
"_render": true
}
],
"nm": "Group 3",
"np": 2,
"cix": 2,
"bm": 0,
"ix": 3,
"mn": "ADBE Vector Group",
"hd": false,
"_render": true
}
],
"ip": 0,
"op": 41,
"st": 0,
"bm": 0,
"completed": true
}
],
"markers": [],
"__complete": true
}The Readable-Lottie version of this same file, though far more verbose and consequently larger, is meant to be much more easily understood by whoever needs to look at this code:
{
"name": "Comp 2",
"lottieVersion": "5.5.9",
"width": 960,
"height": 560,
"frameRate": 30,
"firstFrame": 0,
"lastFrame": 41,
"assets": [],
"duration": "1:10",
"layers": [
{
"name": "groupTest",
"Contents": {
"Group 1": {
"type": "Group",
"children": {
"Rectangle Path 1": {
"type": "Rectangle",
"name": "Rectangle Path 1",
"matchName": "ADBE Vector Shape - Rect",
"hidden": false
},
"Fill 1": {
"type": "Fill",
"color": {
"animated": 0,
"propertyIndex": 4,
"value": "#b2b247"
},
"opacity": {
"animated": 0,
"propertyIndex": 5,
"value": 100
},
"blendMode": 0,
"name": "Fill 1",
"matchName": "ADBE Vector Graphic - Fill",
"hidden": false
}
},
"name": "Group 1",
"numProps": 2,
"propertyIndexAlt": 2,
"blendMode": 0,
"propertyIndex": 1,
"matchName": "ADBE Vector Group",
"hidden": false,
"Transform": {
"position": {
"value": [0, 0]
},
"anchorPoint": {
"value": [0, 0]
},
"scale": {
"value": [100, 100]
},
"rotation": {
"value": 0
},
"opacity": {
"value": 100
}
}
},
"Group 2": {
"type": "Group",
"children": {
"Rectangle Path 1": {
"type": "Rectangle",
"name": "Rectangle Path 1",
"matchName": "ADBE Vector Shape - Rect",
"hidden": false
},
"Fill 1": {
"type": "Fill",
"color": {
"animated": 0,
"propertyIndex": 4,
"value": "#864343"
},
"opacity": {
"animated": 0,
"propertyIndex": 5,
"value": 100
},
"blendMode": 0,
"name": "Fill 1",
"matchName": "ADBE Vector Graphic - Fill",
"hidden": false
}
},
"name": "Group 2",
"numProps": 2,
"propertyIndexAlt": 2,
"blendMode": 0,
"propertyIndex": 2,
"matchName": "ADBE Vector Group",
"hidden": false,
"Transform": {
"position": {
"value": [0, 0]
},
"anchorPoint": {
"value": [0, 0]
},
"scale": {
"value": [100, 100]
},
"rotation": {
"value": 0
},
"opacity": {
"value": 100
}
}
},
"Group 3": {
"type": "Group",
"children": {
"Rectangle Path 1": {
"type": "Rectangle",
"name": "Rectangle Path 1",
"matchName": "ADBE Vector Shape - Rect",
"hidden": false
},
"Fill 1": {
"type": "Fill",
"color": {
"animated": 0,
"propertyIndex": 4,
"value": "#b2b247"
},
"opacity": {
"animated": 0,
"propertyIndex": 5,
"value": 100
},
"blendMode": 0,
"name": "Fill 1",
"matchName": "ADBE Vector Graphic - Fill",
"hidden": false
}
},
"name": "Group 3",
"numProps": 2,
"propertyIndexAlt": 2,
"blendMode": 0,
"propertyIndex": 3,
"matchName": "ADBE Vector Group",
"hidden": false,
"Transform": {
"position": {
"value": [0, 0]
},
"anchorPoint": {
"value": [0, 0]
},
"scale": {
"value": [100, 100]
},
"rotation": {
"value": 0
},
"opacity": {
"value": 100
}
}
}
},
"Transform": {
"opacity": {
"value": 100
},
"rotation": {
"value": 0
},
"position": {
"value": {
"bezierIn": {
"x": 0.833,
"y": 0.833
},
"bezierOut": {
"x": 0.167,
"y": 0.167
},
"startTime": 40,
"startValue": [300, 219, 0],
"inTangent": null,
"outTangent": null
}
},
"anchorPoint": {
"value": [86, -182, 0]
},
"scale": {
"value": [100, 100, 100]
}
}
}
]
}