Free tools from Cherrium

Small utilities.
No catch.

Useful little tools for calmer screens and safer files. No account required, and the calculations stay in your browser.

01 Mac Backup Schedule Builder Turn a few choices into a realistic backup routine. 02 Backup Storage & Time Calculator Estimate capacity and transfer time before the first backup. 03 Photo Metadata Checker Check a photo for common EXIF, GPS, creator, and editing data.

01 / Protect

Build a backup routine you can actually keep.

Choose how you work and where your files live. The builder will suggest a primary schedule, retention window, second copy, and restore check.

How often do your important files change?

Every day A few times a week Occasionally

Main backup destination

Preferred backup time

How difficult are these files to replace?

Irreplaceable Replaceable with effort

My backup destination is not always available or connected

Your suggested routine

A simple, layered plan.

Primary schedule: Every day at 6:30 PM.
Retention: Keep 7 daily, 4 weekly, and 6 monthly versions when storage allows.
Second copy: Add a weekly encrypted cloud or off-site copy.
Restore check: Restore one sample file every month and verify that it opens.

This is a planning aid, not a guarantee. A backup is only proven after a successful restore test.

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02 / Estimate

Know the space and time before you start.

Estimate a practical backup-drive size, first-backup duration, and weekly incremental time from the amount of data, retention window, and destination speed.

Data to protect

Estimated weekly change

History to keep

Sustained transfer speed

For a whole-Mac Time Machine estimate, enter the Mac's full storage capacity rather than only its currently used space.

Planning estimate

Room to grow, time to plan.

Recommended destination size 2 TB

Estimated working requirement: 2 TB
First full backup: 3 hours 21 minutes
Typical weekly changes: 10 minutes
Matching second copy: 2 TB

Uses a 2× minimum and adds a 15% buffer when version history requires more. Actual capacity and time vary with small files, encryption, compression, deduplication, network overhead, and drive performance.

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03 / Inspect

See what a photo carries with it.

Choose a JPEG, PNG, WebP, or HEIC image to check for common location, camera, creator, editing, comment, and color-profile metadata before sharing it.

Choose a photo or drop it here JPEG, PNG, WebP, or HEIC · up to 60 MB

The file is inspected locally in this browser. It is never uploaded to Cherrium.

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Small utilities.
No catch.

Build a backup routine you can actually keep.

Know the space and time before you start.

See what a photo carries with it.

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Small utilities.No catch.

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