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Sapling Grammar Checker and Writing Assistant

Sapling Grammar Checker and Writing Assistant

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Improve your writing with a spell + grammar checker and writing suggestions.
Type
Extension
Users
60,000 users
5K
Sapling Intelligence
View author page of Sapling Intelligence
Featured Extension

Hand-picked for quality and usefulness

Published
Published on February 12, 2018
Version 3.1.1.8
Manifest version
3
Updated
Updated on November 5, 2025
productivity/tools
Extension Category
Website
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View Sapling Grammar Checker and Writing Assistant Chrome Extension on Chrome Web Store
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Extension Manifest

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{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "Sapling Grammar Checker and Writing Assistant",
    "short_name": "Sapling",
    "description": "Improve your writing with a spell + grammar checker and writing suggestions.",
    "version": "3.1.1.8",
    "author": "sapling.ai",
    "icons": {
        "32": "assets\/sapling-32x32.png",
        "48": "assets\/sapling-48x48.png",
        "128": "assets\/sapling-128x128.png",
        "176": "assets\/sapling-176x176.png"
    },
    "content_security_policy": {
        "extension_pages": "script-src 'self'; object-src 'self';"
    },
    "action": {
        "default_icon": {
            "40": "assets\/sapling-40x40.png"
        },
        "default_title": "Sapling",
        "default_popup": "generated\/popup.html#saplingpopup"
    },
    "browser_specific_settings": {
        "gecko": {
            "id": "[email protected]",
            "strict_min_version": "42.0"
        }
    },
    "permissions": [
        "activeTab",
        "alarms",
        "clipboardRead",
        "clipboardWrite",
        "identity",
        "identity.email",
        "offscreen",
        "scripting",
        "storage",
        "tabs",
        "webNavigation"
    ],
    "host_permissions": [
        "<all_urls>",
        "*:\/\/*\/*"
    ],
    "background": {
        "service_worker": "generated\/background-bundle.js"
    },
    "commands": {
        "accept-all-edits": {
            "suggested_key": {
                "default": "Alt+O",
                "mac": "MacCtrl+O"
            },
            "description": "Accept all edit suggestions"
        },
        "accept-current-sentence-edits": {
            "suggested_key": {
                "default": "Alt+I",
                "mac": "MacCtrl+I"
            },
            "description": "Accept edit suggestions in current sentence"
        },
        "toggle-snippet-controls": {
            "suggested_key": {
                "default": "Alt+L",
                "mac": "MacCtrl+L"
            },
            "description": "Launch snippet selector"
        },
        "toggle-rephrase-controls": {
            "description": "Launch rephrase popup",
            "suggested_key": {
                "default": "Ctrl+J",
                "mac": "Command+J"
            }
        },
        "_execute_action": []
    },
    "content_scripts": [
        {
            "matches": [
                "https:\/\/sapling.ai\/main_declarative_injection_dont_remove",
                "https:\/\/*.workplaceoptions.com\/*",
                "http:\/\/localhost:8000\/*",
                "http:\/\/localhost:3176\/*"
            ],
            "js": [
                "generated\/jquery-3.5.1.min.js",
                "generated\/main-bundle.js"
            ],
            "all_frames": true,
            "match_about_blank": true
        },
        {
            "matches": [
                "https:\/\/mail.google.com\/*"
            ],
            "js": [
                "scripts\/gmail-injector.js"
            ],
            "run_at": "document_start"
        }
    ],
    "externally_connectable": {
        "matches": [
            "https:\/\/mail.google.com\/*"
        ]
    },
    "web_accessible_resources": [
        {
            "resources": [
                "assets\/*",
                "generated\/*"
            ],
            "matches": [
                "<all_urls>"
            ]
        },
        {
            "resources": [
                "generated\/gmail-module.js",
                "generated\/gmail-listener.js"
            ],
            "matches": [
                "*:\/\/mail.google.com\/*"
            ]
        }
    ]
}
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