Image Format Converter

A fast online tool to convert and resize images between common formats for workflows, developers, and designers efficiently.

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2,120+
Total Calculations Run
< 15ms
Browser Execution Speed
100%
Client-Side Privacy
4.9 / 5.0
User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Image Format Converter processes input data instantly inside your browser.

Sample Input Birth date: Jan 15, 1995, Target date: Oct 20, 2023
Computed Result Chronological Age: 28 Years, 9 Months, 5 Days (10,505 days elapsed)
Execution Mode Client-Side In-Browser JS
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About This Tool

This tool provides a web-based image format converter and resizer designed for developers, designers, and content teams. It accepts an input image or a URL, a target format, and optional resizing and quality controls to fit web, app, and print workflows. Typical use cases include preparing website assets, creating thumbnails, and adapting assets for multiple platforms.
Processing decodes the source image, applies optional resizing while preserving aspect ratio, and encodes the result in the chosen format using the specified quality. It can preserve or strip metadata and color profiles to balance fidelity and output size. For formats with lossy compression, quality settings influence both visual fidelity and file size.
The tool supports batch processing in advanced mode, enabling multi-input pipelines and consistent outputs across large asset sets. It provides deterministic results, predictable file naming, and outputs such as final format, dimensions, and mime type for downstream automation. Typical recipients include CDNs, asset managers, and content teams delivering web, mobile, and print-ready assets.
Assumptions: inputs are image files or accessible URLs; edits beyond conversion or resizing are out of scope. Exclusions: no heavy editing, no watermarking, no vector-to-raster operations. This tool is designed as a building block for automated asset pipelines and developer tooling, not a standalone image editor.

How to Use

Step 1: Provide inputs by uploading an image or supplying a URL.
Step 2: Choose target format and optional settings: width, height, keep_aspect, quality, preserve_metadata.
Step 3: Run conversion to generate the output.
Step 4: Retrieve the converted file and review dimensions and size.
Step 5: Download or integrate via API into your workflow.

How to use irfanview online converter

Frequently Asked Questions

Find Quick Answers

What formats are supported?
The tool supports input formats such as JPEG, PNG, WebP, TIFF, GIF, and BMP, with target formats including JPEG, PNG, WebP, and TIFF where applicable. Encoding follows standard compression rules, and output compatibility is verified before delivery.
Can I resize while converting?
Yes. Provide width and/or height in pixels. keep_aspect defaults to true to preserve proportions. If both dimensions are supplied, the final size may reflect an intentional aspect change if requested.
Does it preserve metadata?
Metadata preservation can be enabled via preserve_metadata. When supported by the target format, EXIF, IPTC, and XMP blocks are retained. Some formats may drop unsupported metadata; outputs reflect any changes.
Is batch processing supported?
Batch processing is available as an advanced option or API parameter. It allows queuing multiple inputs with individual settings. This increases throughput but may have limits on concurrent requests or total processing time.

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