FileNestCalm file work
01, 02, 03 — sorted in one pass

Rename Files in Sequential Order

Start at any number, count by any increment, place numbers before or after the name, and drag files into the exact order you need.

Start using this tool
File contents stay local Review first, then run
DATA HANDLING BEFORE YOU STARTCore processing stays in this browser; signed-in features store service metadata such as account, quota and jobs, not copies of your work files.
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STEP 01Add files

Choose files from your device; their contents are not uploaded.

STEP 02Choose settings

Combine rules and adjust file order at any time.

STEP 03Review & download

Review every name, resolve conflicts and package the copies.

FREE + PROCore batch renaming stays free; Pro adds advanced naming workflows.Core renaming does not consume conversion credits. Pro adds regex, CSV filename mapping, saved templates and task history.
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DATA HANDLING DETAILSOpen the full data boundary when you want the implementation details.
Full data handling matrix
Processed in this browserCore file processing runs on this device; the work files do not need to be uploaded to FileNest first.
File contents are not uploadedWork files stay on this device for this tool; outputs are generated or downloaded within the browser workflow.
Service metadata ≠ file copiesSigned-in features may store account, quota, job, download or saved-rule records; those records do not contain copies of your work files.
Practical use cases

Less mechanical sorting, more focus

Report attachments

Lock attachments into 01, 02 and 03 so recipients open the right file first.

Product images

Create clear display-order names such as SKU_001 and SKU_002.

Course materials

Start from a chosen chapter number and leave room with a custom increment.

FAQ

Questions before you begin

Can numbering start at zero or another number?

Yes. Set the start to zero or any non-negative integer.

Can I count by 5 or 10?

Yes. The increment is editable and is not limited to one.

Can the number appear after the name?

Yes. Choose before or after and see the exact result immediately.

COMMON TASKS

Number files in sequential order with zero padding

Use sequential renaming when report attachments, product images or course files need a stable 001, 002, 003 order. Arrange the files first, then choose the start, increment, padding and number position.

Number the current file order

The counter follows the order shown in the preview, so you can rearrange files before generating the final sequence.

Choose start and increment

Start at zero or another non-negative number and count by a custom step such as 1, 5 or 10.

Zero pad for predictable sorting

Use 01, 001 or 0001 style numbering so filename sorting stays stable in common file managers.

Tests & product evidence

What evidence supports this workflow?

Only evidence directly relevant to this tool is listed below, with its testing or disclosure boundaries.

Preview-First Batch Safety Evidence

Review production behavior for preflight previews, collision and unsafe-name blocking, original-file protection and image-batch de-duplication.

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File Processing Privacy Matrix

Check whether current working-file contents stay browser-local or use an explicitly disclosed transient-cloud path.

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Browse all tests & evidence