{ "title": "Resize GIF", "human_url": "https://happytails.ai/en/image-tools/resize-gif/", "agent_url": "https://happytails.ai/agents/en/image-tools/resize-gif/", "language": "en", "markdown_url": "https://happytails.ai/en/image-tools/resize-gif.md", "content": "Resize GIF\nResize every GIF frame to your chosen width.\nUseful next steps\nGIF maker\nCombine matching-size images into an animated GIF.\nCompress GIF\nReduce an animated GIF’s colour palette while preserving frame timing.\nWEBP to GIF\nConvert WEBP files to GIF with the available format settings.\nHow to use Resize GIF\nChoose a file in GIF.\nReview the settings, then choose Run Resize GIF.\nReview the result, then use Copy result or a download link when available.\nWhat to expect\nResize every GIF frame to your chosen width. Processed by the local, self-hosted engine. No third-party conversion service is used.", "content_format": "text/plain", "visibility": "public", "links": [ { "name": "GIF maker Combine matching-size images into an animated GIF.", "url": "https://happytails.ai/en/image-tools/gif-maker/" }, { "name": "Compress GIF Reduce an animated GIF’s colour palette while preserving frame timing.", "url": "https://happytails.ai/en/image-tools/compress-gif/" }, { "name": "WEBP to GIF Convert WEBP files to GIF with the available format settings.", "url": "https://happytails.ai/en/image-tools/webp-to-gif/" } ], "tool": { "id": "resize-gif", "category": "image-tools", "built": true, "requirements": "Preserve animation timing and loop metadata while resizing frames.", "implementation": { "fields": [ { "key": "width", "label": "Width (pixels)", "value": 480, "type": "number", "min": 16, "max": 1920, "step": 1 } ], "files": true, "accept": ".gif", "multiple": false, "input": false, "processing": "Server required", "native": true, "maxFileBytes": 20971520, "note": "Processed by the local, self-hosted engine. No third-party conversion service is used. ", "experience": { "automatic": false, "single": false, "label": "Your text", "placeholder": "Type or paste your input…", "help": "Up to 1,000,000 characters. Review the settings before running.", "action": null }, "mode": "explicit", "interactive": false }, "execution": "POST /api/v1/tools/resize-gif/run", "api": { "id": "resize-gif", "name": "Resize GIF", "category": "image-tools", "description": "Resize every GIF frame to your chosen width.", "notes": "Processed by the local, self-hosted engine. No third-party conversion service is used. ", "human_path": "/en/image-tools/resize-gif/", "method": "POST", "endpoint": "/api/v1/tools/resize-gif/run", "schema_url": "/api/v1/tools/resize-gif", "input_schema": { "type": "object", "additionalProperties": false, "properties": { "input": { "type": "string", "maxLength": 1000000, "default": "", "description": "Plain text input. File tools use files instead unless otherwise documented." }, "options": { "type": "object", "additionalProperties": false, "properties": { "width": { "type": "number", "description": "Width (pixels)", "default": 480.0, "minimum": 16, "maximum": 1920, "multipleOf": 1 } } }, "files": { "type": "array", "maxItems": 1, "items": { "type": "object", "required": [ "name", "base64" ], "additionalProperties": false, "properties": { "name": { "type": "string", "maxLength": 200, "description": "Filename only, no path." }, "mime": { "type": "string", "maxLength": 150 }, "bytes": { "type": "integer", "minimum": 0, "description": "Optional decoded byte count; must match content if supplied." }, "base64": { "type": "string", "contentEncoding": "base64", "description": "File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size." } } } } } }, "output_schema": { "type": "object", "required": [ "tool", "result" ], "properties": { "tool": { "type": "string" }, "result": { "type": "object", "required": [ "text", "files" ], "properties": { "text": { "type": [ "string", "null" ] }, "data": { "description": "Parsed JSON when the textual result is JSON." }, "name": { "type": "string" }, "mime": { "type": "string" }, "files": { "type": "array", "items": { "type": "object", "required": [ "name", "mime", "bytes", "base64" ], "properties": { "name": { "type": "string" }, "mime": { "type": "string" }, "bytes": { "type": "integer" }, "base64": { "type": "string", "contentEncoding": "base64" } } } } } } } }, "processing": "Server; self-hosted native engine, no external conversion service", "limits": { "request_bytes": 31457280, "input_characters": 1000000, "files_bytes": 20971520, "max_files": 1, "timeout_seconds": 90 } }, "agent_processing": "Server; self-hosted native engine, no external conversion service", "browser_agent": { "supported": true, "name": "run_current_tool", "discovery": "WebMCP on the human page in a supporting browser", "verification": "See audit/API-AUDIT.md; availability is not verification" } }, "markdown": "# Resize GIF\n\n- Human page: https://happytails.ai/en/image-tools/resize-gif/\n- Markdown: https://happytails.ai/en/image-tools/resize-gif.md\n- Structured JSON: https://happytails.ai/agents/en/image-tools/resize-gif/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `resize-gif` |\n| Category | image-tools |\n| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |\n| Browser execution | Use the visible action or interactive controls. |\n| Browser processing | Server required |\n| HTTP API | /api/v1/tools/resize-gif/run |\n| Browser-agent interface | run_current_tool |\n\n### Implementation notes\n\nProcessed by the local, self-hosted engine. No third-party conversion service is used. \n\n### Inputs and settings\n\nNo free-text input is required. Use the file inputs and/or settings below.\n\nAccepted browser files: `.gif`. Choose one file.\n\nBrowser file-input limit: 20971520 bytes in total. HTTP limits can differ.\n\n| Setting | Meaning | Control type | Default | Constraints |\n| --- | --- | --- | --- | --- |\n| `width` | Width (pixels) | number | 480 | min=16 max=1920 step=1 |\n\n### HTTP contract\n\nAPI calls process supplied data on the server. The website origin is `https://happytails.ai`. Server API hosting is not connected on the public website yet. Use your local server origin to test these requests.\n\n```http\nPOST https://happytails.ai/api/v1/tools/resize-gif/run\nContent-Type: application/json\n```\n\n[Detailed operation reference](https://happytails.ai/en/api/tools/resize-gif.md) · [Shared API guide](https://happytails.ai/en/api.md)\n\n#### Limits\n\n| Limit | Value |\n| --- | --- |\n| request_bytes | 31457280 |\n| input_characters | 1000000 |\n| files_bytes | 20971520 |\n| max_files | 1 |\n| timeout_seconds | 90 |\n\n#### Complete input schema\n\n```json\n{\n \"type\": \"object\",\n \"additionalProperties\": false,\n \"properties\": {\n \"input\": {\n \"type\": \"string\",\n \"maxLength\": 1000000,\n \"default\": \"\",\n \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n },\n \"options\": {\n \"type\": \"object\",\n \"additionalProperties\": false,\n \"properties\": {\n \"width\": {\n \"type\": \"number\",\n \"description\": \"Width (pixels)\",\n \"default\": 480.0,\n \"minimum\": 16,\n \"maximum\": 1920,\n \"multipleOf\": 1\n }\n }\n },\n \"files\": {\n \"type\": \"array\",\n \"maxItems\": 1,\n \"items\": {\n \"type\": \"object\",\n \"required\": [\n \"name\",\n \"base64\"\n ],\n \"additionalProperties\": false,\n \"properties\": {\n \"name\": {\n \"type\": \"string\",\n \"maxLength\": 200,\n \"description\": \"Filename only, no path.\"\n },\n \"mime\": {\n \"type\": \"string\",\n \"maxLength\": 150\n },\n \"bytes\": {\n \"type\": \"integer\",\n \"minimum\": 0,\n \"description\": \"Optional decoded byte count; must match content if supplied.\"\n },\n \"base64\": {\n \"type\": \"string\",\n \"contentEncoding\": \"base64\",\n \"description\": \"File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size.\"\n }\n }\n }\n }\n }\n}\n```\n\n#### Complete output schema\n\n```json\n{\n \"type\": \"object\",\n \"required\": [\n \"tool\",\n \"result\"\n ],\n \"properties\": {\n \"tool\": {\n \"type\": \"string\"\n },\n \"result\": {\n \"type\": \"object\",\n \"required\": [\n \"text\",\n \"files\"\n ],\n \"properties\": {\n \"text\": {\n \"type\": [\n \"string\",\n \"null\"\n ]\n },\n \"data\": {\n \"description\": \"Parsed JSON when the textual result is JSON.\"\n },\n \"name\": {\n \"type\": \"string\"\n },\n \"mime\": {\n \"type\": \"string\"\n },\n \"files\": {\n \"type\": \"array\",\n \"items\": {\n \"type\": \"object\",\n \"required\": [\n \"name\",\n \"mime\",\n \"bytes\",\n \"base64\"\n ],\n \"properties\": {\n \"name\": {\n \"type\": \"string\"\n },\n \"mime\": {\n \"type\": \"string\"\n },\n \"bytes\": {\n \"type\": \"integer\"\n },\n \"base64\": {\n \"type\": \"string\",\n \"contentEncoding\": \"base64\"\n }\n }\n }\n }\n }\n }\n }\n}\n```\n\n#### Error and retry handling\n\nFailures return a non-200 status and `error.code` plus `error.message`. Correct invalid input before retrying; retry server-busy responses with bounded backoff. Returned files contain Base64 data, not persistent download URLs. Decode and inspect the output before treating conversion as successful. See the shared API guide for the complete status and timeout rules.\n\n### Browser-agent workflow\n\n1. Open the human page in a browser that supports WebMCP.\n2. Discover the interface exposed by that page; use its actual schema.\n3. Select files on the page first when the tool requires files.\n4. Call `run_current_tool` with valid input and settings.\n5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links.\n\nCalls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution.\n\n### Planning specification\n\nPreserve animation timing and loop metadata while resizing frames.\n\nThis describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support.\n\n### Complete machine-readable capability record\n\n```json\n{\n \"id\": \"resize-gif\",\n \"category\": \"image-tools\",\n \"built\": true,\n \"requirements\": \"Preserve animation timing and loop metadata while resizing frames.\",\n \"implementation\": {\n \"fields\": [\n {\n \"key\": \"width\",\n \"label\": \"Width (pixels)\",\n \"value\": 480,\n \"type\": \"number\",\n \"min\": 16,\n \"max\": 1920,\n \"step\": 1\n }\n ],\n \"files\": true,\n \"accept\": \".gif\",\n \"multiple\": false,\n \"input\": false,\n \"processing\": \"Server required\",\n \"native\": true,\n \"maxFileBytes\": 20971520,\n \"note\": \"Processed by the local, self-hosted engine. No third-party conversion service is used. \",\n \"experience\": {\n \"automatic\": false,\n \"single\": false,\n \"label\": \"Your text\",\n \"placeholder\": \"Type or paste your input…\",\n \"help\": \"Up to 1,000,000 characters. Review the settings before running.\",\n \"action\": null\n },\n \"mode\": \"explicit\",\n \"interactive\": false\n },\n \"execution\": \"POST /api/v1/tools/resize-gif/run\",\n \"api\": {\n \"id\": \"resize-gif\",\n \"name\": \"Resize GIF\",\n \"category\": \"image-tools\",\n \"description\": \"Resize every GIF frame to your chosen width.\",\n \"notes\": \"Processed by the local, self-hosted engine. No third-party conversion service is used. \",\n \"human_path\": \"/en/image-tools/resize-gif/\",\n \"method\": \"POST\",\n \"endpoint\": \"/api/v1/tools/resize-gif/run\",\n \"schema_url\": \"/api/v1/tools/resize-gif\",\n \"input_schema\": {\n \"type\": \"object\",\n \"additionalProperties\": false,\n \"properties\": {\n \"input\": {\n \"type\": \"string\",\n \"maxLength\": 1000000,\n \"default\": \"\",\n \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n },\n \"options\": {\n \"type\": \"object\",\n \"additionalProperties\": false,\n \"properties\": {\n \"width\": {\n \"type\": \"number\",\n \"description\": \"Width (pixels)\",\n \"default\": 480.0,\n \"minimum\": 16,\n \"maximum\": 1920,\n \"multipleOf\": 1\n }\n }\n },\n \"files\": {\n \"type\": \"array\",\n \"maxItems\": 1,\n \"items\": {\n \"type\": \"object\",\n \"required\": [\n \"name\",\n \"base64\"\n ],\n \"additionalProperties\": false,\n \"properties\": {\n \"name\": {\n \"type\": \"string\",\n \"maxLength\": 200,\n \"description\": \"Filename only, no path.\"\n },\n \"mime\": {\n \"type\": \"string\",\n \"maxLength\": 150\n },\n \"bytes\": {\n \"type\": \"integer\",\n \"minimum\": 0,\n \"description\": \"Optional decoded byte count; must match content if supplied.\"\n },\n \"base64\": {\n \"type\": \"string\",\n \"contentEncoding\": \"base64\",\n \"description\": \"File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size.\"\n }\n }\n }\n }\n }\n },\n \"output_schema\": {\n \"type\": \"object\",\n \"required\": [\n \"tool\",\n \"result\"\n ],\n \"properties\": {\n \"tool\": {\n \"type\": \"string\"\n },\n \"result\": {\n \"type\": \"object\",\n \"required\": [\n \"text\",\n \"files\"\n ],\n \"properties\": {\n \"text\": {\n \"type\": [\n \"string\",\n \"null\"\n ]\n },\n \"data\": {\n \"description\": \"Parsed JSON when the textual result is JSON.\"\n },\n \"name\": {\n \"type\": \"string\"\n },\n \"mime\": {\n \"type\": \"string\"\n },\n \"files\": {\n \"type\": \"array\",\n \"items\": {\n \"type\": \"object\",\n \"required\": [\n \"name\",\n \"mime\",\n \"bytes\",\n \"base64\"\n ],\n \"properties\": {\n \"name\": {\n \"type\": \"string\"\n },\n \"mime\": {\n \"type\": \"string\"\n },\n \"bytes\": {\n \"type\": \"integer\"\n },\n \"base64\": {\n \"type\": \"string\",\n \"contentEncoding\": \"base64\"\n }\n }\n }\n }\n }\n }\n }\n },\n \"processing\": \"Server; self-hosted native engine, no external conversion service\",\n \"limits\": {\n \"request_bytes\": 31457280,\n \"input_characters\": 1000000,\n \"files_bytes\": 20971520,\n \"max_files\": 1,\n \"timeout_seconds\": 90\n }\n },\n \"agent_processing\": \"Server; self-hosted native engine, no external conversion service\",\n \"browser_agent\": {\n \"supported\": true,\n \"name\": \"run_current_tool\",\n \"discovery\": \"WebMCP on the human page in a supporting browser\",\n \"verification\": \"See audit/API-AUDIT.md; availability is not verification\"\n }\n}\n```\n\n## Page guide\n\nResize every GIF frame to your chosen width.\n\n## Useful next steps\n\n- [GIF maker](https://happytails.ai/en/image-tools/gif-maker/): Combine matching-size images into an animated GIF. ([Markdown](https://happytails.ai/en/image-tools/gif-maker.md))\n\n- [Compress GIF](https://happytails.ai/en/image-tools/compress-gif/): Reduce an animated GIF’s colour palette while preserving frame timing. ([Markdown](https://happytails.ai/en/image-tools/compress-gif.md))\n\n- [WEBP to GIF](https://happytails.ai/en/image-tools/webp-to-gif/): Convert WEBP files to GIF with the available format settings. ([Markdown](https://happytails.ai/en/image-tools/webp-to-gif.md))\n\n## How to use Resize GIF\n\n1. Choose a file in GIF.\n2. Review the settings, then choose Run Resize GIF.\n3. Review the result, then use Copy result or a download link when available.\n\n## What to expect\n\nResize every GIF frame to your chosen width. Processed by the local, self-hosted engine. No third-party conversion service is used.\n" }