image_format_savings
How much smaller WebP, AVIF or JPEG XL are than JPEG at matched perceptual quality, from a controlled benchmark on the 24-image Kodak suite. Also reports the HEIC conversion tax.
How to use it
image_format_savings is exposed by the Cleanor MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the image_format_savings tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.
Install Cleanor MCP
claude mcp add --transport http cleanor https://mcp.cleanor.app/mcpOther tools in Cleanor MCP (21)
Integer conversion between bases 2 and 36, BigInt-exact so large values stay exact.
Base64 encode or decode, UTF-8 safe, optional URL-safe alphabet.
Converts one color into hex, RGB and HSL at once. Accepts hex, rgb(), hsl() and CSS names.
Derives a harmonious palette from one base color.
Exact characters (code points), UTF-16 units, words, lines and UTF-8 bytes.
Explains a 5-field cron expression in plain English and lists the next 5 run times in UTC.
The real current time, or any timestamp, rendered in an IANA timezone as ISO, Unix and human forms.
Line-by-line diff of two texts with an added and removed count. Up to 1000 lines per side.
SHA-1/256/384/512 hex digest of text. MD5 is deliberately not offered.
Keyed HMAC signature, hex or Base64. For signing and verifying webhooks.
Validates JSON, then pretty-prints or minifies it, optionally deep-sorting keys. Returns a precise parse error if invalid.
Decodes a JWT header and payload and flags expiry. The signature is not verified and no secret is needed.
Fetches an image from a public URL and re-encodes it smaller. Returns the optimized image plus before and after byte counts. Input capped at 25 MB.
Dependency-free SVG placeholder at any size, with a label and custom colors.
Encodes text or a URL as a crisp SVG QR code you can paste anywhere.
Runs a JavaScript regex against sample text and returns every match with its index and captured groups (first 100).
Clean, URL-safe slug from a title: lowercased, hyphenated, accents stripped.
How many photos or minutes of video actually fit in a storage tier, corrected for real OS and filesystem overhead. Returns a per-format breakdown.
Exact conversion across length, mass, data size, time, speed and temperature.
Splits a URL into scheme, host, port, path, decoded query params and fragment.
UUID v4 (random) or v7 (time-sortable, the better database key).