Does it touch indentation?

Leading whitespace on a line is preserved, so indented text and code-like blocks keep their shape.

How many blank lines survive?

Runs of blank lines collapse to one, which is enough to keep paragraphs apart without leaving a gap.

What punctuation spacing is corrected?

A space before a comma, full stop, semicolon, colon, question mark or exclamation mark is removed, and a missing space after one is added.

Fix spacing API

Remove double spaces, fix triple line breaks, and humanize robotic formatting.

Get a free token Full API reference

Endpoint	POST https://astraltext.com/api/v1/fix-spacing
Auth	Bearer token, free
Sends	input: text
Returns	result: text
Price	Free. 1,000 calls a day, 60 a minute.

When to call it

Spacing damage accumulates: a removed word here, a pasted paragraph there, a template that emits a space whether or not the value exists. It never shows up in testing and always shows up in the published version, so the fix belongs in the step before publishing.

For a one-off, the browser version needs no token and never sends your data anywhere: it runs on your own machine.

Example

curl

curl -X POST https://astraltext.com/api/v1/fix-spacing \
  -H "Authorization: Bearer ast_YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"input": "Two  spaces here ,and a gap before the comma .\n\n\n\nToo many blank lines."}'

response

{
  "tool": "fix-spacing",
  "result": "Two spaces here ,and a gap before the comma .\n\nToo many blank lines.",
  "chars": 68,
  "ms": 1
}

In your language

JavaScript

const res = await fetch("https://astraltext.com/api/v1/fix-spacing", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.ASTRAL_TOKEN}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({"input": "Two  spaces here ,and a gap before the comma .\n\n\n\nToo many blank lines."}),
});
if (!res.ok) throw new Error((await res.json()).detail);
const { result } = await res.json();

Python

import os, requests

res = requests.post(
    "https://astraltext.com/api/v1/fix-spacing",
    headers={"Authorization": f"Bearer {os.environ['ASTRAL_TOKEN']}"},
    json={"input": "Two  spaces here ,and a gap before the comma .\n\n\n\nToo many blank lines."},
    timeout=30,
)
res.raise_for_status()
result = res.json()["result"]

Parameters

Field	Type	Notes
input	string	Required. Up to 200,000 characters per call.

Errors

Errors are RFC 7807 problem documents with a stable type you can branch on.

missing-token	401	No Authorization header.
bad-request	400	input missing or the wrong type.
tool-failed	422	The input could not be processed. detail says why.
quota-exceeded	429	Past 1,000 calls today.

Questions

Does it touch indentation?: Leading whitespace on a line is preserved, so indented text and code-like blocks keep their shape.
How many blank lines survive?: Runs of blank lines collapse to one, which is enough to keep paragraphs apart without leaving a gap.
What punctuation spacing is corrected?: A space before a comma, full stop, semicolon, colon, question mark or exclamation mark is removed, and a missing space after one is added.

Other endpoints

A token takes thirty seconds

Free, no card, 1,000 calls a day, and the same token works on astraltext.com, astralpdf.com, astraljson.com and astralbatch.com.

Get a free token