Python strings come with a powerful set of built-in string methods that let you manipulate text with ease. Whether you’re formatting output, searching for characters, or cleaning up user input, these methods are your toolkit.
🔍 Note: All string methods return new strings — they don’t modify the original.
Complete List of Python String Methods with Descriptions
| Method | Description |
|---|---|
capitalize() | Converts the first character to uppercase |
casefold() | Converts the string to lowercase (more aggressive than lower()) |
center() | Centers the string within a given width |
count() | Counts how many times a value appears |
encode() | Encodes the string into bytes |
endswith() | Returns True if the string ends with the specified value |
expandtabs() | Sets the tab size (e.g., converts \t to spaces) |
find() | Returns the first index of a specified value |
format() | Inserts values into placeholders {} |
format_map() | Like format(), but uses a dictionary |
index() | Returns the first index of a value (raises error if not found) |
isalnum() | Returns True if all characters are alphanumeric |
isalpha() | Returns True if all characters are alphabetic |
isascii() | Returns True if all characters are ASCII |
isdecimal() | Returns True if all characters are decimal numbers |
isdigit() | Returns True if all characters are digits |
isidentifier() | Returns True if the string is a valid Python identifier |
islower() | Returns True if all characters are lowercase |
isnumeric() | Returns True if all characters are numeric |
isprintable() | Returns True if all characters are printable |
isspace() | Returns True if all characters are whitespace |
istitle() | Returns True if the string is title-cased |
isupper() | Returns True if all characters are uppercase |
join() | Joins elements of an iterable into a string |
ljust() | Left-justifies the string |
lower() | Converts the string to lowercase |
lstrip() | Removes leading whitespace |
maketrans() | Creates a translation table |
partition() | Splits the string into three parts around a separator |
replace() | Replaces a substring with another |
rfind() | Returns the last index of a value |
rindex() | Returns the last index (raises error if not found) |
rjust() | Right-justifies the string |
rpartition() | Like partition(), but starts from the right |
rsplit() | Splits from the right |
rstrip() | Removes trailing whitespace |
split() | Splits the string into a list |
splitlines() | Splits at line breaks |
startswith() | Returns True if the string starts with the specified value |
strip() | Removes leading and trailing whitespace |
swapcase() | Swaps uppercase to lowercase and vice versa |
title() | Converts each word’s first character to uppercase |
translate() | Applies a translation table to the string |
upper() | Converts the string to uppercase |
zfill() | Pads the string with zeros on the left |
String Methods String Methods String Methods
