Small tools.
Useful things finished.

From explanation to doing

We show the task and expected result before asking you to choose a tool. Photo guides include actual converted files. Expense guides show the inputs and arithmetic. Gathering tools explain the host and participant steps separately.

Check the examples and the tools together

• Calculation and conversion: compare sample inputs with amounts, actual file sizes and image dimensions. Fictional data and AI-created example images are labelled.
• Storage and sharing: distinguish browser storage from server storage and check what a recipient can see. Review permissions, failed saves and existing links.
• Usability: check representative flows on desktop and mobile, keyboard access, unclear wording and broken links.
• Documentation: update instructions and data notices when features change, recording the changes and check date.

We cannot test every device, browser or input. Check the receiving site’s photo rules, expense amounts and participants, and downloaded files before using them. Calculators provide results based on your inputs; they do not make payments or submit files for you.

Different tools store data differently

The photo compressor processes images on your device. Split Fair keeps drafts locally and stores an online settlement only when you create one. Moaon stores uploaded photos on the server, with album management restricted to the signed-in host. Check each service for retention periods and deletion limits.

Optional anonymous usage counts are off by default. Read the privacy notice and advertising and affiliate notice. Affiliate areas are labelled when present.

Recent changes

14 October 2026 · Public instructions and representative task flows reviewed

• Aligned HEIC/HEIF support information with the photo tool and clarified the 100KB example and troubleshooting.
• Separated local drafts, snapshots and online settlements, including the 90-day availability period, sharing and deletion.
• Added tier-list creation, friend comparison and common-choice instructions to Pick & Rank.
• Connected representative inputs and results on the DURUPOP home page and clarified the feedback route.

Tell us where you got stuck

Send site questions and bug reports through the DURUPOP feedback form. Include the tool, browser, step and error message. Do not send personal photos, payment information, passwords or private management links.

After submitting, keep your private status link to read replies. The form currently uses Korean. Response times are not guaranteed, and not every suggestion can be implemented immediately.