Rename Files Sequentially Online Free – Number Images in Order

What is sequential file renaming?

Sequential file renaming assigns a number to each file in order: 1, 2, 3 — or with a prefix like product-1.jpg, product-2.jpg. It's essential for photographers delivering numbered shoots, e-commerce sellers organizing product catalogues, and developers building image galleries or slide decks.

Numbering options

Start number — begin at 1, 100, or any custom number
Increment — count by 1, 2, 5, 10, or any step
Zero padding — format as 01, 001, 0001 for correct alphabetical sort
Prefix/Suffix — add text like photo- before or -final after the number
Custom pattern — use {prefix}-{index}-{name} template for full control

Example outputs for 3 files with prefix "holiday" and padding 3:

IMG_001.jpg → holiday-001.jpg IMG_002.jpg → holiday-002.jpg IMG_003.jpg → holiday-003.jpg

🔢 Number Your Files Now →

Frequently Asked Questions

Why use zero padding when renaming files sequentially?

Without zero padding, files sort alphabetically in the wrong order: photo-1 → photo-10 → photo-11 → photo-2. With 3-digit zero padding (001, 002…010, 011) they sort correctly. Always use padding equal to or greater than the number of digits in your total count.

Can I start numbering from a custom number?

Yes. In the Settings panel, set "Start From" to any number you like — 1, 100, 1000, etc. You can also set the increment: by 1, by 2, by 10, or any other step. This is useful when adding files to an existing numbered batch.

Can I rename files sequentially without changing the original name?

Yes. Using the Custom Pattern option with the token {name}-{index}, you preserve the original filename and append the sequential number. Example: beach.jpg → beach-1.jpg, sunset.jpg → sunset-2.jpg.