To remove empty lines from text in Visual Studio Code, paste the file's contents into the Remove Empty Lines tool, pick the mode that matches what "empty" means in your file, and copy the cleaned result back into VS Code. The tool filters blank rows from pasted plain text locally — no regex to type, no extension to install, and no upload to a remote service. Input is capped at one million UTF-16 code units, and the implementation reports exactly how many lines were removed and how many were kept. Whitespace-only mode (the default) removes any line that is empty after Unicode-aware trimming, including lines made entirely of spaces, tabs, or non-breaking spaces. Strict-empty mode keeps every line that contains at least one code unit, which is the right choice when you want to preserve indentation-only rows that have meaning in your data. Retained lines are never modified: leading indentation, trailing spaces, repeated internal spacing, punctuation, letter case, and Unicode characters stay exactly as you pasted them. Generated output joins the surviving lines with LF, so mixed CRLF, CR, and LF source endings become one consistent style.
Why a local tool beats a regex replace in VS Code
VS Code's built-in Find and Replace can delete blank lines using a regular expression like ^\s*(?=\r?$)\n, and that approach works, but it comes with several practical costs. A regex like that has to be typed exactly right, the backslash conventions differ between VS Code's search panel and a user's muscle memory from other editors, and a small mistake (a missed question mark, a missing group) silently leaves half the blank rows behind. There is no summary telling you how many lines were removed; you only see the final file length change. There is no preview, so a typo can mutate the file in place and the undo stack becomes the only safety net. For a one-line ad-hoc cleanup the regex is fine, but for repeated cleanups on pasted tables, exported logs, or Markdown drafts copied out of other apps, a dedicated browser tool is faster and safer.
Strip blank lines from VS Code text in three steps
- Open the Remove Empty Lines page and paste your text from VS Code into the input box. The text can come from any file VS Code handles as plain text — Markdown drafts, CSV exports, configuration blocks, log captures, subtitle fragments, or email lists.
- Decide what counts as empty. Leave the whitespace-only option enabled if blank-looking rows in your file actually contain spaces or tabs (a very common situation after editing in spreadsheets). Switch it off if you only want to delete lines that have zero code units and want to keep indentation-only lines for later inspection.
- Click the process action and read the summary: the tool reports how many input lines were removed and how many were retained. Copy the cleaned text and paste it back into your VS Code buffer, replacing the original selection.
Choose what counts as empty
The whitespace-only option is enabled by default because visually blank rows often contain invisible indentation left by editors or spreadsheets — you cannot see the difference, but the rows still occupy memory and break diffs. The strict-empty option is useful when indentation-only rows have meaning in your data (for example, indented placeholder rows in a generated report) or when you need to keep the distinction between empty and whitespace-only records visible for another diagnostic step. Under the hood, the whitespace test uses the browser's built-in Unicode-aware trim behavior, which is documented in MDN's String.trim reference and covers spaces, tabs, non-breaking spaces, and the other whitespace characters JavaScript recognizes.
| Mode | What it removes | What it keeps |
|---|---|---|
| Whitespace-only (default) | Lines that are empty after Unicode-aware trim: zero-length, all spaces, all tabs, non-breaking spaces, or any other recognized whitespace | Lines with at least one non-whitespace character; retained content unchanged |
| Strict empty | Lines with zero code units only | Lines containing a single space, a tab, or any whitespace character; retained content unchanged |
What happens to mixed CRLF, CR, and LF endings
VS Code happily opens files saved on Windows (CRLF), classic Mac (CR), and Unix (LF), but the moment you paste that mixed-ending content into another tool, you usually cannot tell which boundary is which. The tool treats CRLF, a standalone CR, and LF as line boundaries. CRLF counts as one boundary, not two, so a Windows-style blank line is not accidentally double-counted as an empty line plus a content line. Generated output joins the retained lines with LF, which means your pasted Windows file becomes a consistent Unix-style result. If your downstream workflow expects CRLF, run the cleaned text through a separate line-break converter before pasting back. The tool never silently normalizes the source content itself — it only normalizes the boundary characters between retained lines.
What the tool does not change
Retained lines are never trimmed. Leading indentation, trailing spaces, tabs, repeated internal spaces, punctuation, letter case, and Unicode characters all remain exactly as you pasted them. The tool does not collapse whitespace inside a line, wrap prose, remove duplicate content, sort records, or normalize Unicode. Its only decision is whether each complete line passes the selected blank-line predicate. If you need a deduplication pass on top of empty-line removal, run the result through the Remove Duplicate Lines tool, which keeps the first occurrence of each line and preserves the retained text exactly. If you need the surviving lines joined into a single paragraph or wrapped at a target column, those are separate operations handled by different utilities.
VS Code alternatives at a glance
No single approach fits every cleanup. The right choice depends on file size, how often you repeat the cleanup, and how comfortable you are with regular expressions or shell commands.
| Approach | Pros | Trade-offs |
|---|---|---|
| VS Code regex Find & Replace (^\\s*(?=\\r?$)\\n) | Built in, no extra tool, works on the open file in place | Easy to mistype, no removal count, no preview, mutates the open buffer |
| VS Code extension (e.g. Remove Empty Lines) | Runs inside the editor, keyboard-driven, repeatable per file | Installed per machine, requires extension updates, depends on extension author |
| Terminal command (awk, sed, grep -v '^$') | Scriptable, repeatable, handles files larger than one million characters | Requires shell comfort, platform-specific syntax, easy to delete too much |
| Remove Empty Lines browser tool | No install, explicit mode choice, removal count reported, capped at one million characters, nothing uploaded | Requires pasting text out of and back into VS Code |
Limits and edge cases to know
The tool accepts input up to one million UTF-16 code units. Text at the exact limit is processed; one additional code unit causes a visible error and no partial output. The tool never samples, slices, or silently truncates a large paste, so a too-large input always fails loud rather than producing a misleading partial result. Completely empty input is rejected before processing, so you do not get an ambiguous report claiming the absence of text was one removable line. A whitespace-only input is valid: with whitespace-only removal enabled, the result is an empty string with one removed line; with strict-empty removal, the whitespace line remains. Changing the input or the blank-line option clears previous output and counts immediately, so stale numbers never appear next to a fresh paste. The tool does not parse CSV records with embedded newlines, quoted JSON strings, rich text, Word documents, or PDF layout — it sees a browser string and the documented line boundaries only.
For files comfortably above one million characters, or for cleanups that need to live in a shell script or CI pipeline, a command-line approach is the right answer. For anything you can paste into a browser tab, the Remove Empty Lines tool gives you an explicit mode choice, a removal count, and a result that respects every retained code unit. Always review the cleaned output before overwriting the original file in VS Code, especially for programming languages or formats where blank lines aid readability even when they do not affect execution.
For a deeper look, see Python Regex: Remove Punctuation From Any String.
For a deeper look, see How to Get a Random Word in Python Without Code.