🗜️
Popular
Image Compressor
Compress images client-side with quality control. Preview before & after.
compressoptimizejpg+2
Open tool
Free, fast, no login required
Free Online Tools
A practical collection of online tools
67
tools
6
main groups
0đ
Free, fast, no login required
Featured tools
Start with the most useful tools for daily work.
📐
Popular
Image Resizer
Resize images by pixels or percentage. Maintain aspect ratio.
resizescaledimensions
Open tool
🔄
Popular
Image Converter
Convert images between PNG, JPG and WebP formats.
convertpngjpg+2
Open tool
📑
Popular
PDF to Text
Extract all text from PDF files. Supports multi-page PDFs.
pdfextracttext+1
Open tool
📎
Popular
PDF Merger
Merge multiple PDF files into one. Upload up to 10 PDFs.
pdfmergecombine+1
Open tool
{ }
Popular
JSON Formatter
Format, validate and minify JSON. Highlights errors.
jsonformatvalidate+1
Open tool
🔑
Popular
JWT Decoder
Decode JWT tokens — view header and payload without a secret.
jwttokendecode+1
Open tool
🧩
Popular
JSON to TypeScript
Generate TypeScript interfaces/types from JSON payloads for faster API modeling.
jsontypescriptinterface+2
Open tool
Images, PDF & media
🗜️
Popular
Image Compressor
Compress images client-side with quality control. Preview before & after.
compressoptimizejpg+2
Open tool
📐
Popular
Image Resizer
Resize images by pixels or percentage. Maintain aspect ratio.
resizescaledimensions
Open tool
🔄
Popular
Image Converter
Convert images between PNG, JPG and WebP formats.
convertpngjpg+2
Open tool
📦
Base64 Image Encoder
Convert images to Base64 strings and back.
base64encodedecode
Open tool
🎭
Image Filters
Apply grayscale, sepia, blur, brightness and contrast filters.
filtergrayscalesepia+1
Open tool
💧
Image Watermark
Add custom text watermarks to images. Processed server-side.
watermarktextoverlay+1
Open tool
🔃
Image Rotate & Flip
Rotate images 90°/180°/270° or flip horizontally/vertically in the browser.
rotateflipimage+1
Open tool
🌊
Audio Waveform
Upload an audio file and visualize its waveform using Web Audio API.
waveformvisualizeaudio+2
Open tool
📋
PDF Viewer
View PDF files directly in the browser with an embedded viewer.
pdfviewdocument
Open tool
📑
Popular
PDF to Text
Extract all text from PDF files. Supports multi-page PDFs.
pdfextracttext+1
Open tool
📎
Popular
PDF Merger
Merge multiple PDF files into one. Upload up to 10 PDFs.
pdfmergecombine+1
Open tool
📲
QR Code Generator
Generate QR codes for any text or URL. Download as PNG.
qrqrcodebarcode+1
Open tool
📝
YouTube Transcript
Extract subtitles and transcripts from any YouTube video.
youtubetranscriptsubtitles+2
Open tool
📊
Video Info
Fetch title, duration, view count and metadata from YouTube & TikTok.
youtubetiktokmetadata+2
Open tool
Developer
{ }
Popular
JSON Formatter
Format, validate and minify JSON. Highlights errors.
jsonformatvalidate+1
Open tool
🔐
Base64 Encoder / Decoder
Encode or decode Base64 text or files.
base64encodedecode
Open tool
🔗
URL Encoder / Decoder
Encode and decode URL components.
urlencodedecode+1
Open tool
#️⃣
Hash Generator
Generate SHA-256 and SHA-1 hashes using the Web Crypto API.
hashsha256sha1+1
Open tool
🎲
UUID Generator
Generate UUID v4 identifiers. Bulk generate multiple UUIDs.
uuidguidrandom+1
Open tool
🔍
Regex Tester
Test regular expressions with live match highlighting and flags.
regexregexppattern+1
Open tool
🔑
Popular
JWT Decoder
Decode JWT tokens — view header and payload without a secret.
jwttokendecode+1
Open tool
🎨
CSS Beautifier / Minifier
Beautify or minify CSS code. Remove comments and extra whitespace.
cssbeautifyminify+2
Open tool
🖥️
HTML Beautifier / Minifier
Prettify or minify HTML markup with proper indentation.
htmlbeautifyminify+2
Open tool
📋
XML Formatter
Format and validate XML documents with proper indentation.
xmlformatvalidate+1
Open tool
🧩
Popular
JSON to TypeScript
Generate TypeScript interfaces/types from JSON payloads for faster API modeling.
jsontypescriptinterface+2
Open tool
🗃️
SQL Formatter
Beautify and minify SQL queries for easier reading and debugging.
sqlformatterquery+2
Open tool
📮
cURL Builder
Build cURL commands from URL, method, headers, and body for API testing.
curlhttpapi+2
Open tool
🧾
HTTP Headers Parser
Convert raw HTTP headers to JSON and JSON back to raw header format.
httpheadersjson+2
Open tool
🧭
URL Parser
Parse URL structure into protocol, host, path, params, and fragments.
urlparserquery+2
Open tool
🪜
JSON Flatten / Unflatten
Flatten nested JSON into dot paths and reconstruct it back.
jsonflattenunflatten+2
Open tool
🪪
JWT Generator (HS256)
Generate HS256 JWT tokens from custom header/payload JSON and secret.
jwttokenhs256+2
Open tool
✅
UUID Validator
Validate single or bulk UUID strings and identify UUID versions quickly.
uuidvalidatorv4+2
Open tool
🔏
HMAC Generator
Generate HMAC signatures (SHA-1/SHA-256/SHA-512) for API auth and webhook testing.
hmacsignaturesha256+2
Open tool
❓
Query String Tool
Convert JSON objects to query strings and decode query strings back to JSON.
queryurlparams+3
Open tool
🧹
JSON Sorter
Sort JSON keys recursively to keep consistent structure for diffs and reviews.
jsonsortkeys+2
Open tool
📈
Semver Comparator
Compare semantic versions and detect which version is newer or equal.
semverversioncompare+2
Open tool
🖌️
Color Picker
Pick colors and convert between HEX, RGB, HSL and CMYK.
colorhexrgb+2
Open tool
🎨
Color Palette Generator
Generate complementary, analogous, triadic and split-complementary palettes.
palettecolor schemecomplementary+1
Open tool
⚖️
Color Contrast Checker
Check WCAG contrast ratio between foreground and background colors.
wcagaccessibilitycontrast+1
Open tool
SEO & website
🧭
DNS Lookup
Lookup A, AAAA, CNAME, MX, NS, and TXT records for any domain.
dnsa recordmx+3
Open tool
🔐
Popular
SSL Certificate Checker
Inspect SSL certificate issuer, validity dates, SAN list, and days left.
ssltlscertificate+2
Open tool
📡
HTTP Status Checker
Check status code, redirects, response time, and key HTTP headers.
httpstatus codeuptime+2
Open tool
Text
🔢
Popular
Word Counter
Real-time word, character, sentence and paragraph counter with reading time.
wordscharacterscount+1
Open tool
🔤
Text Case Converter
Convert text to UPPER, lower, Title, camel, Pascal, snake, kebab case.
casecamelcasesnake_case+1
Open tool
📜
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs or words.
loremplaceholderdummy text
Open tool
↔️
Text Diff Viewer
Compare two texts and highlight the differences.
diffcomparechanges
Open tool
🔣
HTML Entities
Encode and decode HTML special characters and entities.
htmlentitiesencode+1
Open tool
📝
Markdown to HTML
Convert Markdown to HTML with live preview. Supports tables, code blocks, and more.
markdownhtmlconvert+1
Open tool
🔁
HTML to Markdown
Convert HTML snippets into clean plain text/markdown-like output quickly.
htmlmarkdownconvert+1
Open tool
📊
CSV ↔ JSON
Convert CSV to JSON and JSON to CSV with column mapping.
csvjsonconvert+1
Open tool
⎋
String Escaper
Escape and unescape strings for JavaScript, HTML, URL and JSON.
escapeunescapestring+2
Open tool
🔁
Text Repeater
Repeat any text multiple times with custom separator.
repeattextduplicate+1
Open tool
Calculators
📏
Unit Converter
Convert length, weight, temperature, area and volume units.
unitconvertlength+2
Open tool
⏱️
Timestamp Converter
Convert Unix timestamps to human-readable dates and back.
timestampunixdate+1
Open tool
🔢
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal.
binaryoctaldecimal+2
Open tool
%
Percentage Calculator
Calculate percentages: X% of Y, X is what % of Y, percentage change.
percentpercentagecalculate
Open tool
🎂
Age Calculator
Calculate exact age in years, months, days from a birthdate.
agebirthdaydate+1
Open tool
📅
Date Difference
Calculate the difference between two dates in various units.
datedifferencedays+2
Open tool
🌍
Timezone Converter
Convert date and time between different world timezones.
timezonetimeconvert+2
Open tool
Ⅷ
Roman Numeral Converter
Convert between Arabic numerals and Roman numerals.
romannumeralconvert+1
Open tool
🧾
Tip Calculator
Calculate tip amount and split the bill among multiple people.
tipbillsplit+2
Open tool
💱
Currency Converter
Convert between 170+ currencies with live exchange rates.
currencyexchangeforex+2
Open tool
🏦
Loan Calculator
Calculate monthly payments, total interest and amortization schedule.
loanmortgageinterest+2
Open tool
Security
🔑
Popular
Password Generator
Generate strong random passwords with customizable options.
passwordgeneratorrandom+2
Open tool
🛡️
Popular
Password Strength
Analyze password strength and get improvement suggestions.
passwordstrengthsecurity+1
Open tool
🌐
IP Address Info
Look up geolocation, ISP and network info for any IP address.
ipgeolocationnetwork+2
Open tool
🛡️
Security Headers Checker
Analyze website security headers like CSP, HSTS, X-Frame-Options and more.
securityheaderscsp+2
Open tool