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Image Tools · Updated October 19, 2026

Image Converter

You can convert images between JPG, PNG and WebP in your browser for free. Choose the output format and quality, optionally set a maximum dimension, and convert up to 20 images at once without uploading them.

Runs in your browserFree · No sign-up · No watermark
JPGPNGWebPJPG / PNG / WebPRuns in your browser
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Everything runs locally in this tab. No file is uploaded while the tool loads.

This tool runs in your tab. Nothing is uploaded and no copy is stored.

How files are handled

At a glance

Formats
JPG, PNG, WebP → JPG, PNG or WebP
Processing
In your browser
Max size
Up to 50 MB per image
Price
Free, no account
Updated
October 19, 2026
All Image Tools

About Image Converter

Format conversion is usually a small, repetitive job: a logo that must be PNG for a form, a folder of screenshots that should be WebP for a site, a photo that has to be JPG for an older phone. Juggling separate tools for each direction wastes time, so this page puts every combination of JPG, PNG and WebP in one place.

Choose the output format first, then decide how much quality to keep and whether to cap the longest side. The converter processes each file in turn, reports the before and after size, and names the download after the source with the new extension. All work happens locally, so client files and personal photos never leave the device.

What this tool does

The details that matter when you use Image Converter for real work.

  • All nine format directions

    Convert JPG, PNG and WebP to any of the three formats without switching tools.

  • Quality control

    A 5-100 quality slider applies to JPG and WebP output, so you can balance detail against file size.

  • Optional size cap

    Limit the longest side to 2560, 1920, 1280, 800, 512 or 256 pixels while keeping the aspect ratio.

  • Batch conversion

    Queue up to 20 images; each is converted separately and gets its own download button.

  • Clear output naming

    Every result keeps the source base name with the new extension, and duplicate names get a numeric suffix.

  • Private by design

    The browser does the decoding and encoding, so no image is uploaded and no account is needed.

How to use Image Converter

No account, no installation — the whole job happens in this browser tab.
  1. 01

    Add your images

    Drop one or more JPG, PNG or WebP files onto the picker; up to 20 files per batch.

  2. 02

    Choose the output format

    Pick JPG for compatibility, PNG for lossless pixels or WebP for the smallest file.

  3. 03

    Adjust quality and size

    Move the quality slider for lossy formats and optionally cap the longest side.

  4. 04

    Convert and download

    Click Convert, check the before and after sizes, then download each result.

Supported formats and limits

Input
JPGPNGWebP
Output
JPG, PNG or WebP
Processing
Client-side, in your browser. Nothing is uploaded.
Maximum size
Up to 50 MB per image
Requirements
Chrome, Edge, Firefox or Safari on desktop or mobile

Limitations worth knowing

  • Only JPG, PNG and WebP inputs are supported; HEIC and raw camera files need a dedicated tool first.
  • JPG and WebP output is lossy; keep the originals if you may need full quality later.
  • Re-encoding strips EXIF metadata and converts colours to sRGB, so wide-gamut images may shift slightly.

Privacy and file handling

Images are decoded and re-encoded inside your browser tab with the Canvas API. They are never uploaded to FormatFlow or a third party, and no copy is stored. Closing the page discards the batch and its results.

Read the full privacy policy

Image Converter FAQ

Short, direct answers to the questions people ask before using this tool.
JPG, PNG or WebP: which should I pick?
JPG is the most compatible and smallest for photos, PNG is lossless and keeps transparency, and WebP is usually the smallest option for both photos and graphics. Pick based on where the image is going rather than on the format's age.
What is the difference between converting and compressing an image?
Converting changes the file format, while compressing deliberately discards detail to reduce size. This tool does both when you pick a lossy format or lower the quality; use the image compressor when reducing size is the only goal.
Does converting change the image resolution?
Not unless you set a maximum dimension. The pixels are copied at their original width and height, and the result reports the exact dimensions per file.
Are transparent areas preserved?
PNG and WebP output keep transparency. JPG has no alpha channel, so transparent pixels are composited onto white and the change is shown in the interface.
Can I convert HEIC or other camera formats here?
This converter handles JPG, PNG and WebP. Use the HEIC to JPG or HEIC to PNG tool for iPhone photos, then convert the result to another format if needed.
Why did the output file get bigger?
PNG is lossless, so converting an already-compressed JPG to PNG usually makes a larger file. Choose JPG or WebP when a smaller file matters more than exact pixels.
Is there a batch limit for large folders?
Up to 20 files per batch, with a 50 MB limit per file. Very large batches can exhaust the memory available to a browser tab, especially on phones.
Where do the converted images go?
Nowhere except your downloads folder. The conversion runs inside the browser tab, the files are never uploaded, and nothing is kept after you close or refresh the page.

Background reading

Format guides that explain the trade-offs behind Image Converter.