Helphonic

Convert Image

Convert images between JPG, PNG, and WebP with predictable quality.

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Current limits

per operation

Files
2
Per file
10 MB
Total size
20 MB
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Limit comparison

How to increase limits

Compare the per-operation limits available after registration or with an active paid pass.

Free account

Registered user

Unlimited Free Usage

Files
2
Per file
10 MB
Total size
20 MB
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All access passes

Unlimited operations during active validity, subject to abuse safeguards.

Files
2
Per file
10 MB
Total size
20 MB
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Frequently asked questions

Does JPG support transparency?

No. Transparent pixels are placed on a white background when converting to JPG.

Why is registration required?

The administrator configured this feature with an account allowance and access-pass fallback.

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How to use

Convert Image

Convert a JPG, PNG or WebP image to another supported format while keeping its pixel dimensions.

Step-by-step instructions

  1. Choose one JPG, PNG or WebP image.
  2. Choose WebP, JPG or PNG in Output format.
  3. Run Convert Image and download the converted copy.
  4. Open the result in the application where you plan to use it, especially if the source contains transparency.
Supported files and result

Both input and output support JPG/JPEG, PNG and WebP. This tool does not convert PDF, SVG, HEIC, TIFF or other unsupported formats.

The image keeps its pixel dimensions after supported JPEG orientation is applied. The output is re-encoded, so its file size, metadata and appearance can differ from the source.

Choosing a format
  • JPG is useful for photographs and broad application compatibility. JPG cannot store transparency; transparent areas are placed on a white background.
  • PNG can retain transparency and is useful for graphics and screenshots. A PNG made from a JPG does not restore detail already lost through compression.
  • WebP can retain transparency and is useful where the receiving website or application supports it. Check the destination requirements before exporting.
Troubleshooting

There is no quality slider or exact file-size target on this tool. Use Compress Image for adjustable compression, or Resize Image to change pixel dimensions.

Changing a filename extension does not convert a file. If the source is rejected, open it in a trusted image editor and save a real supported image file. Smaller dimensions can help when decoding exceeds the processor memory limit.

Processing and privacy

The selected files are uploaded to Helphonic for processing in private storage. No third-party file-processing service is used. Temporary source and output files are removed after the download response, and failed processing cleans up temporary files. Keep your originals and save the result to your device.

About this tool

Registered users receive a configurable free allowance. When that allowance is used, an active access pass unlocks continued use without per-operation charges.

Read the full Convert Image guide (opens in a new tab)