# PlatPhorm Image Converter

> Free, private, in-browser batch image converter at https://image.platphormnews.com. Image decoding, transforms, encoding, comparison, and ZIP creation happen on the user's device. Image files are not uploaded to a server.

## Primary use

- Convert HEIC/HEIF, AVIF, WebP, JPEG, PNG, TIFF, BMP, SVG, GIF, and APNG inputs.
- Export WebP, JPEG, PNG, or AVIF when the active browser can encode it.
- Resize, center-crop, rotate, flip, target a file-size ceiling, remove embedded EXIF/GPS metadata by re-encoding, rename, compare, and download a ZIP.
- Use presets for phone cleanup, websites, email, social media, print, and avatars.

## Honest boundaries

- This is an interactive browser product, not a server-side image conversion API.
- Format support is detected at runtime; AVIF export and some source decoders vary by browser.
- GIF, APNG, animated WebP, and HEIC/HEIF sequence evidence is inspected locally before conversion. Animated inputs are handled as a still frame by the current conversion pipeline, and inconclusive bounded scans are labeled honestly.
- No account or server-side persistence is provided.
- Generated site artwork and documentation may be model-assisted. Image conversion is deterministic browser software; no AI model receives user files.
- Corrections policy: report factual or evidence errors to support@platphormnews.com; claims are revalidated and corrected when warranted.

## Public discovery

- App: https://image.platphormnews.com
- Health: https://image.platphormnews.com/api/health
- API docs: https://image.platphormnews.com/api/docs
- OpenAPI: https://image.platphormnews.com/openapi.yaml
- Complete guide: https://image.platphormnews.com/llms-full.txt
- MCP: https://image.platphormnews.com/api/mcp
- Agent policy: https://image.platphormnews.com/.well-known/agents.json
- Trust policy: https://image.platphormnews.com/.well-known/trust.json
- RSS: https://image.platphormnews.com/rss.xml

## Conversion workflow

1. Choose or drop one or more supported image files into the converter.
2. Pick an output format and quality.
3. Optionally resize, crop, rotate, flip, set a target size, or apply a named preset.
4. Convert the queue in the browser.
5. Compare the browser-produced input preview and output.
6. Download one output or a ZIP of completed outputs.

## Capability detail

Input formats: HEIC, HEIF, AVIF, WebP, JPEG, PNG, TIFF, BMP, SVG, GIF, APNG.
Output formats: WebP, JPEG, PNG, AVIF when the browser supports encoding.
Resize modes: longest edge, width, height, exact dimensions, or no resize.
Crop ratios: none, 1:1, 4:3, 3:2, 16:9, and 9:16.
Rotations: 0, 90, 180, and 270 degrees, with optional horizontal flip.
Target file-size mode: for lossy output, the browser binary-searches encoder quality and returns the smallest tested result if the requested ceiling cannot be reached.
Metadata boundary: canvas re-encoding omits source EXIF and GPS blocks; image bytes and conversion results remain on the device.

## Public routes

- GET /api/health
- GET /api/v1/health
- GET /api/docs
- GET /openapi.yaml
- GET /llms.txt
- GET /llms-full.txt
- GET /llms-index.json
- GET /robots.txt
- GET /sitemap.xml
- GET /sitemap-index.xml
- GET /rss.xml
- GET /feed.xml
- GET /atom.xml
- GET /manifest.webmanifest
- GET /.well-known/mcp.json
- GET /.well-known/agents.json
- GET /.well-known/security.txt
- GET /.well-known/trust.json
- GET /api/mcp
- POST /api/mcp — JSON-RPC 2.0, public read-only methods only

## MCP methods

- initialize
- ping
- tools/list
- tools/call
- resources/list
- resources/read
- prompts/list
- prompts/get

MCP tools report real browser capabilities, named UI presets, and privacy boundaries. They do not claim to convert image bytes on the server.

## Authentication and trust

Public browser conversion and read-only discovery do not require authentication. There are no server-side write routes today. Any future mutating, administrative, ingestion, publishing, sync, reporting, or write operation must accept Authorization: Bearer $PLATPHORM_API_KEY or X-PlatPhorm-API-Key: $PLATPHORM_API_KEY.

Trusted platform scope is *.platphormnews.com. The current service performs no server-side crawl, arbitrary URL fetch, proxy, replay, webhook, or navigation. Any future implementation of those capabilities must reject localhost, private, link-local, and metadata-service addresses and enforce a bounded allowlist.

## Trace and metadata

Public HTTP routes accept W3C traceparent and return a child traceparent plus X-PlatPhorm trace, span, request, source-site, and target-site identifiers. No image content, filename, credential, cookie, raw IP address, request body, or unsafe baggage is added to public trace data. Safe Vercel metadata state is reported in health without exposing request identities.

## Sources and ownership

The product is published by PlatPhormNews. Browser API and codec implementation references are linked from the public page. Source release date: 2026-07-26. Service version: 1.2.0.