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01JSON Formatter & Validator02JSON Path Builder03JWT Decoder04Base64 Encode / Decode05URL Encode / Decode06Unix Timestamp Converter07SQL Formatter08CSV ↔ JSON Converter09CSV Duplicate Processor10Markdown → HTML Converter11Regex Tester12HTML Formatter / Minifier13Character & Byte Counter14Japanese Era ↔ Gregorian Converter15Katakana ↔ Hiragana Converter16Japan Postal Code Lookup17Character Encoding Inspector (UTF-8)18XML ↔ JSON Converter19YAML ↔ JSON Converter20HTML Entity Encoder / Decoder21SQL IN Clause Generator22Date Difference Calculator23Japan Phone Number Formatter24CSV Column Extractor25CSV Merger26Text / JSON Diff Viewer27SQL INSERT Generator28SQL Function Reference29SQL Query Analyzer30Business Day Calculator31Power Query Code Generator32Japan Address Splitter33UUID Generator34Hash Generator (SHA-256 / SHA-512)35Number Base Converter (2 / 8 / 10 / 16)36Cron Expression Parser37Color Code Converter (HEX / RGB / HSL)38QR Code Generator39Image Resizer40Image Compressor41PDF Merger

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image resize scale width height jpg png webp

Image Resizer

Upload an image to resize it to any dimensions. Supports aspect-ratio lock and outputs in JPEG, PNG, or WebP.

ファイルをドロップ、またはクリックして選択

JPG / PNG / WebP / GIF · Max 20MB

USAGE

3 simple steps

  1. 1Drop or click to select an image file
  2. 2Set width and height (aspect ratio can be locked)
  3. 3Click Resize & Download

FAQ

Frequently Asked Questions

Q. Is the aspect ratio preserved?

A. Aspect ratio lock is on by default. Unlock it to set width and height independently.

Q. Is transparency (alpha channel) preserved?

A. PNG and WebP output preserve transparency. JPEG output fills transparent areas with white.

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