How to convert spaces to tabs online
What does the spaces per tab setting do?
Convert multiple spaces to tabs in source code
Example of replacing spaces with tab characters
Convert spaces to tabs without changing other text
Copy or download converted text
Features explained
Adjustable spaces per tab
Set the group size from 1 to 32 spaces. The default is 4, and the effective value is clamped to this range.
Copy converted text
Use Copy to copy the converted output to the clipboard. The interface also has a Copied! label for its copied state.
Download the result
Use Download to save the converted text as a file. The exact filename, extension, and download format are not established by the supplied code.
Load a working example
Select Load Example to populate the tool with sample text and try the conversion before using your own content.
Clear the current text
Select Clear to reset the current text in the tool.
Client-side text processing
The conversion logic runs in the browser. The supplied implementation does not use a fetch or API call for this conversion.
What can you use it for?
Formatting source code
Replace groups of four spaces with tabs when preparing code for an editor or project that uses tab characters. Check the result because the tool does not understand language-specific indentation rules.
Cleaning up copied text
Convert repeated spaces in text copied from another editor or document when the destination expects tab characters.
Preparing structured text
Change exact groups of spaces into tabs in plain-text lists or records while keeping unmatched spaces unchanged.
Learning how tabs differ from spaces
Try the example with different settings to see how character replacement works. A tab's displayed width depends on the application showing the output.
Tool information
| Tool mode | spacesToTabs |
|---|---|
| Default spaces per tab | 4 |
| Effective spaces-per-tab range | 1 to 32 |
| Replacement character | Tab character (\t) |
| Matching rule | Exact groups of consecutive ordinary spaces |
| Processing | Client-side in the browser |
| Available interface actions | Copy, Download, Load Example, Clear |
Benefits
- Change repeated spaces into actual tab characters instead of merely changing how text looks.
- Choose a group size that suits your text, from 1 to 32 spaces.
- Keep spaces that do not match the selected group size.
- Copy or download the converted output using the available interface actions.
- Try a sample before processing your own text.
Limitations
- Only consecutive ordinary space characters matching the configured group size are replaced.
- The default group size is 4, so shorter groups of spaces remain unchanged.
- The converter does not detect programming languages or calculate indentation automatically.
- Tabs may appear wider or narrower in different editors because display width is controlled by the application.
- The supplied code does not establish a maximum input length or a specific downloaded filename and extension.
How your text is processed
The spaces-to-tabs conversion runs in your browser using client-side logic, and the supplied implementation contains no fetch or API call for this operation. This describes the conversion path only; it does not establish how the wider website handles analytics, hosting logs, or other data.
Tips
- Start with the default setting of 4 if your text uses four spaces per indentation level.
- Set the group size to 1 only when you intend to replace every ordinary space character with a tab.
- Check groups of spaces carefully because unmatched spaces are preserved.
- Use Load Example to test the conversion, then use Clear before starting fresh.
- Review the converted text in your destination editor because the visual width of a tab can vary.
Frequently asked questions
How do I convert spaces to tabs online?
Paste your text into Input Text, choose the spaces-per-tab setting, and inspect Converted Text. The default setting replaces each matching group of four consecutive spaces with one tab. Use Copy to copy the result or Download to save it.
How many spaces does one tab replace by default?
Four. The default spacesPerTab setting is 4, so a matching group of four consecutive ordinary spaces becomes one tab character. Groups containing fewer spaces remain unchanged unless you choose a smaller setting.
Can I convert two spaces into one tab?
Yes. Set spacesPerTab to 2. The converter replaces each exact group of two consecutive spaces with one tab character. Other text remains unchanged, including spaces that do not form a complete matching group.
What is the spaces-per-tab setting range?
The effective range is 1 to 32. The conversion code clamps the configured value to that range, with 4 as the default. This setting controls how many consecutive spaces are matched, not how wide tabs appear in your text editor.
Can I replace every space with a tab character?
Yes. Set spacesPerTab to 1 to replace each ordinary space character with a tab. This affects spaces between words as well as indentation, so review the result before using it in code or other formatted text.
Does converting spaces to tabs change other characters?
No. The conversion rule targets exact groups of consecutive ordinary spaces. Characters that are not part of a matched group are left unchanged. For example, with the default setting of 4, a group of two spaces stays as two spaces.
Can I convert spaces to tabs in source code?
Yes. You can use the tool to replace matching groups of spaces in source code. However, it does not parse your programming language or determine the right indentation rules, so check the output in your code editor.
Can I use the converter without uploading my text?
The conversion itself runs in your browser and the supplied logic makes no fetch or API call for this operation. This does not establish the data-handling practices of the wider website, so it should not be treated as a blanket privacy guarantee.
How do I copy or download the converted text?
Use Copy to place the converted output on your clipboard, or select Download to save it as a file. Load Example provides sample content, and Clear resets the current text. The exact downloaded filename and extension are not established by the supplied code.