129 Free Online Tools.
PDF, Image, SEO & More.
Convert PDFs, optimize images, debug APIs, formulate financial models, and manipulate text with zero server uploads, zero wait times, and zero paywalls.
100% Private
Zero server uploads
Sub-Second Speed
WASM & Canvas compute
No Signup Walls
Instant friction-free use
Lossless Quality
Zero watermarks or caps
Popular Productivity Tools
Free tools for developers, designers, and students. No sign-up required, processed right in your browser.
Compress PDF
Shrink a PDF file so it is easier to email or upload to a portal, choosing a compression level that keeps text and forms readable.
JPG to PDF
Combine JPG, PNG or WebP photos and scans into one printable PDF, arranging their order and choosing page orientation and margins.
Merge PDF
Combine two or more PDF files into a single document, dragging them into the order you want before downloading the merged file.
Random String & Key Generator
Create a secure random string, password or API key at the length and character mix you choose, using your browser's cryptographic generator.
Color Palette Generator
Upload a photo, logo or design image to extract a matching set of dominant colors as copyable HEX swatches for web and brand work.
PDF to Word & Text
Pull the plain text out of a PDF, keeping its paragraphs, so you can copy it, edit it or save it as a text or Word file.
Remove Image Background
Detect the subject of a photo automatically and erase its background in one click, leaving a clean cutout ready for a new backdrop or transparent use. It runs free on the server via remove.bg with no signup.
QR Code Generator
Generate high-resolution QR codes in your browser for links, text, Wi-Fi details and contact cards, ready to download as a PNG.
Random Number Generator
Generate random numbers in your browser within any minimum and maximum range, in batches and optionally with unique values only.
Data Storage Converter
Convert data storage sizes in your browser between bytes, kilobytes, megabytes, gigabytes and terabytes.
Percentage Calculator
Solve percentage problems instantly, including what X percent of Y is, what percentage X is of Y, and percentage increase or decrease, with a step-by-step breakdown.
BMI Calculator
Enter your height and weight in metric or imperial units to get your Body Mass Index, its WHO health category and a healthy weight range.
Engineered for Every Digital Workflow
From instant document conversion to developer cryptography, access specialized suites built for speed and security.
PDF Tools
Merge, split, compress, protect, unlock, watermark, grayscale, extract, and convert PDF documents.
Image Tools
Compress, resize, convert, crop, filter, pick colors, extract palettes, and create favicons.
SEO Tools
Meta tags, robots.txt, sitemaps, Open Graph, Twitter cards, SERP previews, schemas, and audits.
Developer Tools
Formatters, minifiers, encoders, JWT decoders, UUIDs, regex, cron, diff, and subnet tools.
Text Tools
Word count, case conversion, line counters, sorting, deduplication, NATO, and morse code.
Calculators
Age, percentage, BMI, loan EMI, compound interest, tax, salary, calorie, and dates.
Utility Tools
QR codes, barcodes, stopwatches, timers, unit converters, screen testers, and randomizers.
All 129 Productivity Utilities
Browse by category or filter dynamically. Every single tool runs client-side with complete privacy guarantee.
Age Calculator
Enter your birth date to get your exact age in years, months, weeks, days, hours and minutes, plus a countdown to your next birthday.
Article Schema Generator
Create BlogPosting and NewsArticle JSON-LD schema from your headline, author and publish date in your browser.
Aspect Ratio Calculator
Find the matching width or height for an aspect ratio in your browser, including 16:9, 4:3, 21:9 and 1:1 presets.
Background Remover
Remove the background from a photo or logo and download it as a transparent PNG, adjusting sensitivity to keep the subject's edges clean.
Barcode Generator
Generate printable CODE128, EAN-13 and UPC barcodes in your browser, with adjustable height and a downloadable PNG.
Base64 to Image
Paste a Base64 data URI or raw Base64 string to preview the decoded picture and download it as a PNG or JPG file.
Base64 Encoder & Decoder
Encode plain text into Base64 or decode a Base64 string back to readable UTF-8 text, including data URLs for images.
Binary to Text & Text to Binary
Convert text to 8-bit binary or binary code back to readable text in your browser.
BMI Calculator
Enter your height and weight in metric or imperial units to get your Body Mass Index, its WHO health category and a healthy weight range.
Body Fat Percentage Calculator
Estimate body fat percentage from neck, waist, hip and height measurements using the US Navy tape method, with separate formulas for men and women.
Breadcrumb Schema Generator
Build BreadcrumbList JSON-LD markup from your page hierarchy so search results show a clean navigation trail.
Calorie & BMR Calculator
Work out your basal metabolic rate and total daily energy expenditure from age, weight, height and activity level, with targets for weight loss or gain.
Canonical URL Generator
Create a clean rel=canonical tag for a page and normalize its URL parameters in your browser.
Case Converter
Change text between upper, lower, Title, Sentence, camel, snake and kebab case in your browser with one click.
Character Counter
Count characters in your text in real time in your browser, with and without spaces, plus tweet and SMS length checks.
Coin Flipper (Heads or Tails)
Flip a virtual coin in your browser for a fair heads-or-tails result, with running heads and tails statistics.
Color Blindness Simulator
Preview how images and designs appear under different types of color blindness in your browser, including protanopia, deuteranopia and tritanopia.
Color Converter (HEX/RGB/HSL)
Convert a color between HEX, RGB, HSL and HSV formats and see a live preview swatch, ready to copy into CSS.
Color Palette Generator
Upload a photo, logo or design image to extract a matching set of dominant colors as copyable HEX swatches for web and brand work.
Compound Interest Calculator
See how savings grow with compound interest by entering principal, rate, compounding frequency and time, with a year-by-year balance breakdown.
Compress PDF
Shrink a PDF file so it is easier to email or upload to a portal, choosing a compression level that keeps text and forms readable.
Countdown Timer
Set a custom countdown in your browser with hours, minutes and seconds, a visual progress display and a sound alert when it finishes.
Cron Expression Generator
Build a cron schedule visually by picking minute, hour, day, month and weekday, and get the standard 5-field crontab expression with a plain-language explanation.
CSS Formatter
Paste messy or minified CSS to reformat it with clean indentation, separated rules and aligned braces, ready to copy back into your stylesheet.
CSS Minifier
Shrink a CSS stylesheet by removing comments, extra whitespace and line breaks while keeping its rules intact, for faster page loading.
cURL to Fetch Converter
Paste a terminal cURL command and get clean, copy-ready JavaScript fetch() code with its URL, method, headers and body preserved.
Days Between Dates Calculator
Pick any two calendar dates to count the exact days, weeks, months and business days between them, excluding weekends where needed.
Virtual Dice Roller
Roll virtual dice in your browser for board games and tabletop RPGs, from d4 to d100, with totals and roll history.
Text & Code Diff Checker
Paste two versions of text or code side by side to highlight added, removed and changed lines, so you can spot edits at a glance.
Discount Calculator
Enter the original price and discount percentage to get the final sale price and the exact amount you save, useful for sales and clearance shopping.
Duplicate Line Remover
Remove duplicate lines from a list in your browser, keeping the first occurrence or sorting the unique lines.
Extract Emails from Text
Scan any text in your browser to pull out all unique, valid email addresses into a clean list.
Extract PDF Pages
Pick individual pages or a range such as 1, 3-5 from a PDF and save only those pages as a new standalone PDF.
Extract URLs from Text
Scan any text in your browser to pull out all HTTP and HTTPS links into a clean, deduplicated list.
FAQ Schema Generator
Turn your questions and answers into FAQPage JSON-LD schema for rich search results in your browser.
Favicon Generator
Turn a square logo or image into browser favicons in standard sizes, including 16x16, 32x32, 48x48 and 180x180, with ready-to-use HTML link code.
Fuel Cost Trip Calculator
Estimate trip fuel cost from distance, vehicle efficiency and fuel price, showing total litres or gallons needed and the total expense for road trips or commutes.
GIF Frame Extractor
Open an animated GIF, pick the moment you want, and save that frame as a still PNG image for reuse in posts or designs.
College & High School GPA Calculator
Add courses with letter grades and credit hours to calculate a weighted cumulative GPA on the 4.0 scale for high school or college.
Hash Generator (SHA-256, SHA-512)
Type or paste text to generate its SHA-256, SHA-512, SHA-384 or SHA-1 checksum instantly, for verifying files and data integrity.
Heading Structure Checker
Check a page's H1 to H6 headings in your browser to spot missing H1s, duplicate H1s and skipped levels.
Hreflang Tag Generator
Generate hreflang link tags for each language and region version of a page, including an x-default fallback.
HTML Formatter
Paste messy HTML markup to reformat it with clean tag indentation and readable nesting, without changing its content.
HTML Minifier
Compress HTML markup by stripping comments and collapsing extra whitespace, so pages load faster without changing how they look.
HTML to Markdown Converter
Turn HTML markup into clean Markdown, keeping headings, links, lists and bold or italic text, for READMEs, docs and blogs.
Image Color Picker
Click any pixel in an uploaded image or screenshot to read its exact color as HEX, RGB and HSL values, ready to copy into your design.
Image Compressor
Shrink JPG, PNG and WebP images by adjusting a quality slider, with a before-and-after preview so you can balance file size and clarity.
Image Format Converter
Convert an image between WebP, PNG, JPG, BMP and GIF, keeping transparency where the target format supports it.
Image Cropper
Drag a crop box over a photo or graphic, or choose a preset ratio such as 1:1, 16:9 or 4:3, then download just the selected area.
Image Filter Effects
Style a photo with filters such as grayscale, sepia, blur, invert or brightness, adjusting intensity before downloading the result.
Image Flipper & Rotator
Mirror a photo horizontally or vertically, or rotate it 90, 180 or 270 degrees, to fix orientation or create a mirrored effect.
Image Metadata Viewer
Drop in a PNG, JPG, WebP or GIF to read its dimensions, resolution, file size, MIME type and other technical details at a glance.
Image Resizer
Set a new width and height in pixels or by percentage, lock the aspect ratio to avoid stretching, or use a social-media size preset.
Image to Base64
Turn a photo or icon into a Base64 Data URI string that can be embedded directly in HTML or CSS, so small graphics need no separate file.
IP Subnet Calculator (CIDR)
Enter an IP address and CIDR prefix to get its netmask, network and broadcast addresses, total hosts and usable IP range.
JavaScript Formatter
Paste unformatted JavaScript to reformat it with clean indentation, clear block structure and readable spacing, ready to copy back into your project.
JPG to PDF
Combine JPG, PNG or WebP photos and scans into one printable PDF, arranging their order and choosing page orientation and margins.
JSON Formatter & Validator
Paste JSON to prettify it with readable indentation, validate its syntax with error locations, or minify it to one line, with a collapsible tree view.
JWT Decoder
Paste a JSON Web Token to decode its header and payload, view its claims in plain text, and check issued and expiry timestamps.
Keyword Density Analyzer
Paste text in your browser to see each keyword's count and density percentage, so you can avoid stuffing.
Line Counter
Count the lines in your text in your browser, split into total, non-empty and blank lines.
Loan EMI Calculator
Enter loan amount, interest rate and tenure to get your monthly EMI, total interest payable and total repayment for home, auto or personal loans.
Local Business Schema
Create LocalBusiness JSON-LD schema with your address, phone number and opening hours in your browser.
Lorem Ipsum Generator
Generate classic Lorem Ipsum placeholder text in the number of paragraphs, sentences or words you choose, for layouts, mockups and typography tests.
Markdown to HTML Converter
Write or paste Markdown and get clean HTML markup for headings, lists, links, images and code blocks, with a live rendered preview.
Merge PDF
Combine two or more PDF files into a single document, dragging them into the order you want before downloading the merged file.
Meta Tag Generator & Previewer
Build HTML meta tags and preview how your page will look on Google, Facebook and Twitter in your browser.
Morse Code Translator
Translate text to Morse code dots and dashes, or decode Morse code back to plain text, in your browser.
Add Line Numbers
Add sequential numbers to the start of every line in your text, with standard or zero-padded formats, in your browser.
Open Graph Generator
Create Open Graph and Twitter Card tags for a page and preview the social share card in your browser.
PDF Metadata Editor
Read and update a PDF's title, author, subject, keywords and creator details, then save a clean copy with corrected properties.
PDF Page Counter
Instantly find out how many pages a PDF contains, along with page sizes, orientation and basic file details, without opening a reader.
PDF to Grayscale
Turn a color PDF into a clean black-and-white version so it prints cheaply and stays readable, keeping the original page layout.
PDF to JPG
Render every page of a PDF as a JPG or PNG picture at standard or high resolution, downloading pages one by one or together as a ZIP.
PDF to Word & Text
Pull the plain text out of a PDF, keeping its paragraphs, so you can copy it, edit it or save it as a text or Word file.
PDF to Word
Turn a PDF into an editable Word (.docx) file so you can change its text and paragraphs in Word or Google Docs.
PDF Watermark
Add custom text watermarks to any PDF in your browser, with control over opacity, placement and rotation.
Percentage Calculator
Solve percentage problems instantly, including what X percent of Y is, what percentage X is of Y, and percentage increase or decrease, with a step-by-step breakdown.
PNG to SVG Converter
Turn a raster PNG into an SVG vector file that scales to any size without pixelation, for logos, icons and web graphics.
Product Schema Generator
Build Product JSON-LD schema with name, brand, price, currency and stock availability in your browser.
Protect PDF
Lock a PDF with a password in your browser so only people with the password can open it.
QR Code Generator
Generate high-resolution QR codes in your browser for links, text, Wi-Fi details and contact cards, ready to download as a PNG.
Random Number Generator
Generate random numbers in your browser within any minimum and maximum range, in batches and optionally with unique values only.
Random String & Key Generator
Create a secure random string, password or API key at the length and character mix you choose, using your browser's cryptographic generator.
Redirect Chain Checker
Trace a URL's 301 and 302 redirect chain hop by hop in your browser to find loops and long chains.
Regex Tester
Enter a regular expression and test text to see live matches, match groups and counts, with flags for global, case-insensitive, multiline and dotAll searches.
Remove Image Background
Detect the subject of a photo automatically and erase its background in one click, leaving a clean cutout ready for a new backdrop or transparent use. It runs free on the server via remove.bg with no signup.
Remove Empty Lines
Strip blank and whitespace-only lines from your text in your browser, leaving a compact list or document.
Remove Extra Spaces
Clean up irregular spacing in your text in your browser by collapsing multiple spaces and trimming trailing spaces.
Reorder PDF Pages
Drag PDF pages into a new order or reverse the whole document in your browser.
Reverse Text Generator
Reverse your text in your browser by flipping letters, word order or line order to make backwards text.
Robots.txt Generator
Build a custom robots.txt file in your browser to allow or block crawlers for specific paths and add your sitemap.
Rotate PDF
Rotate individual PDF pages or the whole document by 90, 180 or 270 degrees in your browser.
Salary to Hourly Calculator
Convert an annual salary into its equivalent hourly, daily, weekly and monthly pay, based on your working hours per week.
Sales Tax Calculator
Enter a pre-tax price and sales tax rate to get the tax amount and the total price including tax, for shopping, invoices or checkout totals.
Scientific Calculator
Do advanced maths in your browser with trigonometry, logarithms, powers, roots and standard arithmetic, using a full scientific keypad.
Screen Resolution & DPI Checker
See your screen resolution, browser viewport size, device pixel ratio and color depth instantly in your browser.
Google SERP Simulator
See how your title, URL and meta description will look in Google search results on desktop and mobile.
Simple Interest Calculator
Calculate simple interest on principal only, using rate and time, to get interest earned or owed and the total amount.
XML Sitemap Generator
Generate a valid XML sitemap in your browser from a list of URLs, with change frequency and priority settings.
SEO Slug Generator
Turn a title or headline into a clean, lowercase URL slug with hyphens in your browser.
Sort Lines Alphabetically
Sort the lines of your text alphabetically in your browser, A to Z or Z to A, with case-sensitivity options.
Split PDF
Split a PDF by page ranges or separate every page into its own file in your browser.
SQL Formatter
Paste a one-line SQL query to pretty-print it with uppercase keywords and indented SELECT, FROM, WHERE and JOIN clauses, for MySQL, PostgreSQL and SQLite.
Online Stopwatch
Time events in your browser with a millisecond-precision stopwatch, including lap and split-time recording.
SVG to PNG Converter
Turn an SVG vector file or pasted markup into a crisp PNG at the pixel size you choose, preserving transparency for icons, logos and illustrations.
Text & Email Obfuscator
Hide email addresses and text from spam scrapers in your browser by encoding them as HTML entities that still display normally.
Add Prefix & Suffix to Lines
Add a custom prefix to the start and suffix to the end of every line at once in your browser, for quotes, tags or labels.
Find and Replace Text
Find every occurrence of a word or phrase in your text and replace it in bulk in your browser, with case-sensitive options.
NATO Phonetic Alphabet Converter
Spell out words in your browser using the NATO phonetic alphabet, such as Alpha, Bravo and Charlie, for clear names and serial keys.
Text to Slug Converter
Convert text into a clean slug or identifier in your browser in kebab, snake, camel or Pascal case.
Unix Timestamp Converter
Convert a Unix timestamp in seconds or milliseconds into a human-readable date, or turn a date back into an epoch timestamp, in UTC and local time.
Tip & Bill Split Calculator
Enter a bill total and tip percentage to calculate the tip and total, then split the amount evenly per person for restaurants or group meals.
Twitter Card Generator
Generate Twitter summary and large-image card meta tags for X in your browser, with title, description and image fields.
Data Storage Converter
Convert data storage sizes in your browser between bytes, kilobytes, megabytes, gigabytes and terabytes.
Length Unit Converter
Convert lengths instantly in your browser between meters, kilometers, miles, feet, inches, yards and centimeters.
Speed Unit Converter
Convert speeds in your browser between miles per hour, kilometers per hour, knots and meters per second.
Temperature Unit Converter
Convert temperatures instantly in your browser between Celsius, Fahrenheit and Kelvin, with the conversion formula shown.
Weight & Mass Unit Converter
Convert weight and mass in real time in your browser between kilograms, grams, pounds, ounces, stones and metric tons.
Unlock PDF
Remove print, copy and edit restrictions from a PDF in your browser so you can use your own document freely.
Upside Down Text Generator
Flip your text upside down in your browser using Unicode characters, ready to paste into bios and social posts.
URL Encoder & Decoder
Encode a full URL or a single query value into percent-encoded form, or decode percent-encoded strings back to readable text, so special characters do not break links.
User Agent Parser
Paste any browser user-agent string to identify its browser, engine, version, operating system and device type, or inspect your own current string.
UTM Link Builder
Build a tracked campaign URL in your browser by adding UTM source, medium, campaign and term parameters to any link.
UUID / GUID Generator
Generate one or many random Version 4 UUIDs or GUIDs for database keys, file names and API identifiers, in upper or lower case.
Watermark Tool
Add your own text or copyright stamp to a photo, choosing its size, color, opacity, rotation and position, or tile it across the whole image.
Word & Character Counter
Count words, characters, sentences and paragraphs in real time in your browser, with an estimated reading time.
Word to PDF
Convert a Word (.docx) document into a clean, printer-ready PDF in your browser.
XML Formatter
Paste raw or single-line XML and turn it into a neatly indented, readable document tree while preserving its tags and attributes.
Engineered for Privacy.
Built for Blazing Speed.
Say goodbye to sluggish web tools cluttered with spam ads, email capture walls, and invasive data logging. ToolNest brings uncompromising SaaS performance directly to your browser.
Privacy First
Your PDFs, private images, and confidential files never leave your device. All rendering, compression, and conversions execute client-side via WebAssembly and HTML5 memory streams.
Lightning Fast
Runs in your browser without lengthy conversion queues.
No Paywalls
No credit cards, no login hurdles, no quotas, and no tiered restrictions. Access every tool freely with enterprise reliability anytime.