Browser tools for developers
Fast, privacy-first tools that run locally in your browser.
Format JSON, compare text, and convert data — no uploads. Just open a tool and get it done.
Runs locally (no server upload)
No account required
Built for speed
Text tools
Manipulate and compare text with powerful local tools.
Text Compare
Compare two texts side-by-side and highlight differences (diff) in seconds.
text compare, diff checker, compare text online
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Trim Text
Remove leading and trailing whitespace from text instantly.
trim text, remove whitespace, text cleaner
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Sort Lines
Sort lines of text alphabetically, numerically, or by length.
sort lines, alphabetize, sort text
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Find & Replace
Find and replace text instantly. Supports plain text and regular expressions.
find replace, text replace, regex replace
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URL Encode
Encode URLs safely using percent encoding.
url-encode, url encode
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URL Decode
Decode URLs safely using percent decoding.
url-decode, url decode
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Lowercase Converter
Transform text instantly. Runs locally in your browser.
lowercase-converter, lowercase converter
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Uppercase Converter
Transform text instantly. Runs locally in your browser.
uppercase-converter, uppercase converter
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Title Case Converter
Transform text instantly. Runs locally in your browser.
title-case-converter, title case converter
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Sentence Case Converter
Transform text instantly. Runs locally in your browser.
sentence-case, sentence case converter
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Remove Empty Lines
Remove Empty Lines transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-empty-lines, remove empty lines
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Remove Duplicate Lines
Remove Duplicate Lines transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-duplicate-lines, remove duplicate lines
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Replace Tabs With Spaces
Replace Tabs With Spaces transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
replace-tabs-with-spaces, replace tabs with spaces
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Sort Text Lines
Sort Text Lines transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
sort-text-lines, sort text lines
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Line Randomizer
Line Randomizer transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
line-randomizer, line randomizer
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Remove Extra Spaces
Remove Extra Spaces transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-extra-spaces, remove extra spaces
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Word Counter
Word Counter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
word-counter, word counter
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Character Counter
Character Counter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
character-counter, character counter
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Line Counter
Line Counter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
line-counter, line counter
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Email Extractor
Email Extractor transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
email-extractor, email extractor
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URL Extractor
URL Extractor transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
url-extractor, url extractor
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Domain Extractor
Domain Extractor transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
domain-extractor, domain extractor
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Number Extractor
Number Extractor transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
number-extractor, number extractor
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Remove Duplicate Words
Remove Duplicate Words transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-duplicate-words, remove duplicate words
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Remove Punctuation
Remove Punctuation transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-punctuation, remove punctuation
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Sentence Counter
Sentence Counter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
sentence-counter, sentence counter
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Phone Number Extractor
Phone Number Extractor transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
phone-number-extractor, phone number extractor
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Remove Prefix From Lines
Remove Prefix From Lines transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-prefix-from-lines, remove prefix from lines
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Add Prefix To Lines
Add Prefix To Lines transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
add-prefix-to-lines, add prefix to lines
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Add Suffix To Lines
Add Suffix To Lines transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
add-suffix-to-lines, add suffix to lines
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Remove Suffix From Lines
Remove Suffix From Lines transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-suffix-from-lines, remove suffix from lines
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Add Line Numbers
Add Line Numbers transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
add-line-numbers, add line numbers
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Space Remover
Space Remover transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
space-remover, space remover
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Reverse Text
Reverse Text transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
reverse-text, reverse text
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Slug Generator
Slug Generator transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
slug-generator, slug generator
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Word Reverser
Word Reverser transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
word-reverser, word reverser
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Case Converter
Case Converter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
case-converter, case converter
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Regex Extractor
Regex Extractor transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
regex-extractor, regex extractor
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Remove Diacritics
Remove Diacritics transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-diacritics, remove diacritics
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HTML Encode
HTML Encode transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
html-encode, html encode
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Extract Text From HTML
Extract Text From HTML transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
extract-text-from-html, extract text from html
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Binary to Text
Binary to Text transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
binary-to-text, binary to text
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Text to Binary
Text to Binary transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
text-to-binary, text to binary
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ROT13 Converter
ROT13 Converter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
rot13-converter, rot13 converter
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Hex to Text
Hex to Text transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
hex-to-text, hex to text
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Text to Hex
Text to Hex transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
text-to-hex, text to hex
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CSV to TSV
CSV to TSV transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
csv-to-tsv, csv to tsv
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TSV to CSV
TSV to CSV transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
tsv-to-csv, tsv to csv
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JSON Stringify
JSON Stringify transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
json-stringify, json stringify
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JSON Unstringify
JSON Unstringify transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
json-unstringify, json unstringify
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Word Frequency Counter
Word Frequency Counter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
word-frequency-counter, word frequency counter
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Unique Words Extractor
Unique Words Extractor transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
unique-words-extractor, unique words extractor
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Text Statistics Analyzer
Text Statistics Analyzer transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
text-statistics-analyzer, text statistics analyzer
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Word Density Calculator
Word Density Calculator transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
word-density-calculator, word density calculator
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Shannon Entropy Calculator
Shannon Entropy Calculator transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
shannon-entropy-calculator, shannon entropy calculator
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JWT Decoder
JWT Decoder transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
jwt-decoder, jwt decoder
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Base64 URL-Safe Converter
Base64 URL-Safe Converter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
base64-url-safe-converter, base64 url-safe converter
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Text to ASCII Art
Text to ASCII Art transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
text-to-ascii-art, text to ascii art
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Text to Morse Code
Text to Morse Code transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
text-to-morse-code, text to morse code
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Morse Code to Text
Morse Code to Text transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
morse-code-to-text, morse code to text
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Remove Line Breaks
Remove Line Breaks transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-line-breaks, remove line breaks
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HTML Decode
HTML Decode transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
html-decode, html decode
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Escape Strings
Escape Strings transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
escape-strings, escape strings
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Text Joiner
Text Joiner transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
text-joiner, text joiner
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Text Splitter
Text Splitter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
text-splitter, text splitter
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Remove Non-ASCII Characters
Remove Non-ASCII Characters transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-non-ascii-characters, remove non-ascii characters
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Normalize Line Endings
Normalize Line Endings transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
normalize-line-endings, normalize line endings
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Dedent Text
Dedent Text transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
dedent-text, dedent text
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URL Parser
URL Parser transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
url-parser, url parser
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JSON Validator
JSON Validator transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
json-validator, json validator
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Markdown to HTML
Markdown to HTML transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
markdown-to-html, markdown to html
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HTML Prettify
HTML Prettify transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
html-prettify, html prettify
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HTML Minify
HTML Minify transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
html-minify, html minify
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Remove HTML Comments
Remove HTML Comments transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-html-comments, remove html comments
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Markdown to Plain Text
Markdown to Plain Text transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
markdown-to-plain-text, markdown to plain text
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Text Truncate
Text Truncate transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
text-truncate, text truncate
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Wrap Text
Wrap Text transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
wrap-text, wrap text
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Sort Lines by Length
Sort Lines by Length transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
sort-lines-by-length, sort lines by length
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Remove Lines Containing Text
Remove Lines Containing Text transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-lines-containing-text, remove lines containing text
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Keep Lines Containing Text
Keep Lines Containing Text transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
keep-lines-containing-text, keep lines containing text
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HTML to Markdown
HTML to Markdown transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
html-to-markdown, html to markdown
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Unicode Escape
Unicode Escape transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
unicode-escape, unicode escape
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Unicode Unescape
Unicode Unescape transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
unicode-unescape, unicode unescape
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Newlines to Spaces
Newlines to Spaces transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
newlines-to-spaces, newlines to spaces
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Spaces to Newlines
Spaces to Newlines transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
spaces-to-newlines, spaces to newlines
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Smart Quotes to Straight Quotes
Smart Quotes to Straight Quotes transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
smart-quotes-to-straight-quotes, smart quotes to straight quotes
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Remove Zero-Width Characters
Remove Zero-Width Characters transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-zero-width-characters, remove zero-width characters
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Extract Hashtags
Extract Hashtags transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
extract-hashtags, extract hashtags
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Extract Mentions
Extract Mentions transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
extract-mentions, extract mentions
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Extract Words
Extract Words transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
extract-words, extract words
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Remove Numbers
Remove Numbers transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-numbers, remove numbers
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Extract Sentences
Extract Sentences transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
extract-sentences, extract sentences
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Remove Emojis
Remove Emojis transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-emojis, remove emojis
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Collapse Newlines
Collapse Newlines transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
collapse-newlines, collapse newlines
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Paragraph Counter
Paragraph Counter transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
paragraph-counter, paragraph counter
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JSON Diff
JSON Diff transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
json-diff, json diff
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JSON Sort Keys
JSON Sort Keys transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
json-sort-keys, json sort keys
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Text Redactor
Text Redactor transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
text-redactor, text redactor
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Remove Duplicate Characters
Remove Duplicate Characters transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-duplicate-characters, remove duplicate characters
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Strip Smart Quotes
Strip Smart Quotes transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
strip-smart-quotes, strip smart quotes
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Normalize Unicode
Normalize Unicode transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
normalize-unicode, normalize unicode
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Remove HTML Attributes
Remove HTML Attributes transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
remove-html-attributes, remove html attributes
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Extract Code Blocks
Extract Code Blocks transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
extract-code-blocks, extract code blocks
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CRC32 Checksum
CRC32 Checksum transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
crc32-checksum, crc32 checksum
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SHA-256 Fingerprint
SHA-256 Fingerprint transforms your text instantly. Runs locally in your browser — no uploads, no server processing.
sha256-fingerprint, sha-256 fingerprint
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Data & Converters
Convert between formats and encode/decode data safely.
JSON Formatter
Format (pretty-print) and minify JSON instantly — runs locally in your browser.
json beautifier, json formatter, json pretty print, json minify
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CSV → JSON
Convert CSV to JSON instantly. Runs locally in your browser.
csv to json, csv converter, csv parser
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JSON → CSV
Convert JSON to CSV instantly. Runs locally in your browser.
json to csv, json converter, csv export
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Text → CSV
Convert plain text into CSV format instantly. Runs locally in your browser.
text to csv, text converter, csv generator
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Base64 Encode / Decode
Encode or decode Base64 strings instantly. Runs locally in your browser.
base64 encode, base64 decode, base64 converter
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Why ToolPad
Designed for quick debugging and day-to-day developer workflows.
Local-first
Tools are designed to run in your browser so you can work with sensitive data more confidently.
Instant
No setup, no logins. Open a tool and get results immediately.
Simple & focused
Clean UI, keyboard-friendly, and built to do one job well.
FAQ
Quick answers about privacy and how ToolPad works.
Do these tools upload my data to a server?
No. ToolPad is designed to run tools locally in your browser. Nothing you paste is sent to a server.
Do I need an account to use ToolPad?
No account needed. Open a tool and start using it immediately.
Can I use ToolPad on mobile?
Yes. The tools are responsive and work on modern mobile browsers.
Is ToolPad free?
Yes. ToolPad is free to use.