Your text is processed locally in the browser and never sent.

Prefix/Suffix Batch Agregarer (Agregar to Line Start/End)

Q: "Can I skip empty lines?"

"S?. Choose ‘Quitar empty lines’ to exclude them from the output. You can also keep them or add prefix/suffix to them."

Q: "Can I add numbering?"

"S?. Enable numbering and set the start, digits (zero padding), and separator."

Q: "I only want to edit the first TSV column"

"Turn on column targeting, choose Tab as the delimiter, and set the column index to 1."

Q: "Is my text sent to a server?"

"No. Everything runs locally in your browser."

Q: "My line breaks look wrong"

"Try switching the line ending option to LF or CRLF."

Agregar text to the line start (prefix) and line end (suffix) in one pass. Great for line start bulk add, line end add tool searches, and fast prefix/suffix assignment. Empty-line handling and numbering included.

Entrada

Lines: 0 Empty: 0 Chars: 0

Idle Auto

Salida

Lines: 0 Chars: 0 Last run: -

Basic Configuraci?n

Required

Prefix (add to line start)

Chips

Suffix (add to line end)

Chips

Empty line handling

If you remove empty lines, they disappear from the output.

Vista previa

Line rule

Empty line preview

Advanced Opciones

Agregar numbering

Start

Digits

Separator

Position

Number non-empty lines only

Vista previa:

Column targeting (TSV/CSV)

Delimiter

Column index (1-based)

Only the selected column is modified; others stay intact.

This is a simple split and does not handle full CSV quoting.

Trim whitespace

Line endings

How to use

1

Paste your lines

Paste a newline-separated list into the input box.
2

Set prefix/suffix

Type what you want to add to each line.
3

Convert and copy

Run the conversion, then copy or download.

Examples (click to load)

Click a card to load input and settings

Rules

Entrada line breaks are normalized from CRLF/LF/CR.
When trim is enabled, leading/trailing spaces are removed before processing.
If empty lines are removed, trailing empty lines are also removed.
Column targeting uses a simple split and does not handle full CSV quotes.

FAQ

Q. Can I skip empty lines?

A. S?. Choose ‘Quitar empty lines’ to exclude them from the output. You can also keep them or add prefix/suffix to them.

Q. Can I add numbering?

A. S?. Enable numbering and set the start, digits (zero padding), and separator.

Q. I only want to edit the first TSV column

A. Turn on column targeting, choose Tab as the delimiter, and set the column index to 1.

Q. Is my text sent to a server?

A. No. Everything runs locally in your browser.

Q. My line breaks look wrong

A. Try switching the line ending option to LF or CRLF.