Simple, fast, privacy-first tools for developers, writers, and creators. Everything runs locally in your browser.
Summarize any text. TF-IDF extractive NLP. Adjustable length.
Detect emotional tone. Word-level breakdown. Positive/negative score.
Paraphrase text in different tones. Synonym replacement engine.
Generate professional emails. 8 templates, 3 tones. Editable output.
Smart hashtags for Instagram, TikTok, Twitter. Category matching.
Beautify, minify, and validate JSON data with key sorting and stats.
Generate UUID v4 identifiers. Bulk generate up to 1000 with format options.
Encode text to Base64 or decode Base64 strings. File-to-Base64 support.
Convert between Unix timestamps and human-readable dates. Live clock.
Compare two texts side by side. See additions, removals, and changes.
Test regular expressions with live highlighting and match groups.
Complete regex reference with live testing. Click any pattern to test.
Encode special characters for URLs. Parse and decode query strings.
Convert CSV data to JSON and back. Auto-detect headers and delimiters.
Encode special characters to HTML entities. Prevent XSS vulnerabilities.
Parse cron expressions into human-readable schedules with next run times.
Decode and inspect JSON Web Tokens. View header, payload, and expiration.
Beautify and format SQL queries for better readability. Supports all dialects.
Calculate Unix file permissions. Convert between numeric and symbolic formats.
Visualize JSON as a tree and click any value to get its path.
Explore JSON as an interactive collapsible tree. Search keys.
Convert CSV data to JSON. Custom delimiters and header detection.
Build cron expressions visually. Presets and human-readable output.
Compare two texts side by side. Additions and deletions highlighted.
Create HTML tables visually. Enter data and copy the code.
Analyze SEO meta tags. Check title, description, OG tags. SEO score.
Minify or beautify CSS. Remove comments, compress whitespace, reduce file size.
Count code lines, comments, and blank lines. Auto-detects language.
Minify JavaScript. Remove comments, whitespace, reduce file size.
Validate JSON data against a JSON Schema. Check types and required fields.
Convert SQL queries to MongoDB commands. SELECT → find, INSERT → insertOne.
Create HTML tables visually. Edit cells, style, and generate code.
Estimate storage, bandwidth, and download times for data sets.
Count words, characters, sentences. Estimate reading and speaking time.
Check Flesch Reading Ease, grade level, and writing statistics.
Convert text between 11 formats: UPPER, lower, Title, camelCase, snake_case, and more.
Generate placeholder text by paragraphs, sentences, or words.
Write Markdown with live preview. GitHub-style rendering and HTML export.
Remove extra spaces, empty lines, duplicates. Sort and number lines.
Repeat any text multiple times with custom separators and numbering.
Listen to text read aloud. Choose voice, speed, and pitch.
Browse & copy Unicode symbols: arrows, math, currency, shapes, and more.
Generate Markdown tables visually. Edit cells, set alignment, import CSV.
Compare two texts word-by-word. See additions and deletions highlighted.
Extract the most important sentences from any text. Runs locally.
Strip HTML tags, scripts, and styles. Extract clean readable text.
Check text for spelling and grammar mistakes. Get suggestions.
Calculate how long it takes to read or speak any text.
Browse 300+ emojis by category. Click to copy. Build collections.
Convert between HEX, RGB, HSL. Color picker, CSS values, and harmonies.
Pick colors visually. Get HEX, RGB, HSL. 140 named CSS colors.
Create favicons from emoji or text. Custom colors, multiple sizes, PNG download.
Generate QR codes for URLs, text, WiFi, email. Custom colors and sizes.
Create CSS gradients visually. Linear, radial, conic. 12 preset palettes.
Design CSS box shadows visually. Multiple layers, inset, and presets.
Calculate and resize dimensions while maintaining aspect ratios.
Design CSS border-radius visually. Individual corners, presets, live preview.
Generate harmonious color palettes. Extract colors from images. Press Space!
Generate custom placeholder images for mockups and wireframes. Any size.
Build CSS Flexbox layouts visually with live preview and code output.
Build CSS Grid layouts visually. Define columns, rows, and gaps.
Check WCAG color contrast ratios. AA and AAA level compliance.
Simulate 7 types of color blindness. Test accessibility of your color palette.
Create CSS animations with presets. Bounce, pulse, spin, fade, and more.
Measure pixel distances on screen. Drag to draw measurement lines.
Create stunning gradient text effects with CSS. Live preview and code.
Preview and compare 27 fonts. Test size, weight, and line height.
Extract a color palette from any image. Get HEX and RGB values.
Find the name of any color. Matches to 148 CSS named colors.
Social media, screen, and print dimensions. Click to copy.
Preview any website on iPhone, iPad, laptop, and desktop sizes.
Create beautiful linear, radial, and conic gradients visually.
Interactive color wheel with complementary, triadic, and analogous harmonies.
Create pixel art. Draw, erase, fill. Export as PNG.
Compress JPG, PNG, WebP images in your browser. Batch processing, no upload.
Resize images for all social platforms. Instagram, Facebook, YouTube, X, LinkedIn.
Convert images to Base64 data URIs for embedding in HTML and CSS.
Check screen resolution, viewport size, pixel ratio, and breakpoints.
Resize images to any dimensions. Aspect ratio lock, presets, format choice.
Generate Code128 barcodes. Customize width, height, download as PNG.
Convert SVG to PNG at any resolution. Custom dimensions and background.
View photo metadata: camera, lens, settings, GPS, and timestamps.
Generate SEO, Open Graph, and Twitter Card meta tags with live preview.
Generate robots.txt files. Block AI bots, set crawl rules, add sitemap.
Create SEO-friendly URL slugs from any text. Bulk generation and transliteration.
Preview how your URL looks on Facebook, Twitter, and Slack before sharing.
Generate Apache .htaccess for redirects, security, GZIP, and caching.
Debug Open Graph tags. Preview Facebook and Twitter social cards.
Convert text to binary, hex, octal, and decimal. Reverse conversion supported.
Convert between binary, octal, decimal, and hexadecimal number systems.
Translate text to Morse code and back. Play audio beeps.
Analyze Unicode code points, UTF-8 bytes, and character encodings.
Interactive Raspberry Pi GPIO pinout. Click pins for details and Python code.
Calculate resistor values from color bands. Visual resistor display.
Interactive AND, OR, NOT, XOR gates. Truth tables and Python code.
Design LED blinking patterns visually. Export Python code for your Pi.
Calculate percentages, changes, increases and decreases. Tip calculator.
Convert between Bytes, KB, MB, GB, TB. Binary and decimal modes.
Random numbers, dice rolls, coin flips, lottery picks, and list randomizer.
Flip a virtual coin. Track heads vs tails with statistics.
Roll D4-D100 dice. Multiple dice, modifiers, and roll history.
Convert between Roman numerals and decimal numbers. Year converter.
Calculate exact age in years, months, days. Next birthday countdown.
Convert length, weight, temperature, volume, speed, area, and time.
Calculate monthly payments, interest, and amortization for any loan.
Calculate tips and split bills. Quick presets and comparison table.
Binary arithmetic and bitwise operations (AND, OR, XOR, shifts).
Calculate sale prices, savings, and compare discount levels.
Calculate your GPA. Add courses with grades and credit hours.
Calculate investment growth with compound interest over time.
Calculate monthly payments, total interest, and amortization schedule.
Convert between 38 world currencies with flags and quick reference.
Calculate return on investment, profit margin, and break-even point.
Calculate net pay, taxes, and convert between pay periods.
Calculate appliance electricity costs per day, month, and year.
Count down to any date. Days, hours, minutes, and seconds.
Test every key on your keyboard with visual feedback.
Generate a QR code to share your Wi-Fi. Guests scan to connect.
Query DNS records for any domain. A, MX, CNAME, TXT, NS records.
Stay focused with 25-minute work sessions and timed breaks.
Generate GDPR/CCPA compliant privacy policies for your website.
Record your screen in the browser. Download as WebM video.
Calculate IP subnets, CIDR notation, host ranges, and network addresses.
Validate email syntax, detect typos, and bulk-check email lists.
Find your public IP address, browser, OS, and device information.
Test download speed and connection latency in your browser.
Convert times between 25 timezones. Schedule meetings globally.
Generate pure tones at any frequency. Test speakers and hearing range.
Generate strong, secure passwords with strength meter and bulk generation.
Generate MD5, SHA-1, SHA-256, SHA-512 hashes. File hashing and comparison.
Calculate SHA-256, SHA-512 file checksums. Verify file integrity.
AES-256 text encryption. Password-protected messages. Client-side.
Create professional invoices with line items, tax, and discounts. Print as PDF.
Advanced invoicing with multi-currency, tax, discounts, and PDF output.
Create professional email signatures for Gmail, Outlook, Apple Mail.
Generate GDPR/CCPA-compliant privacy policies. Download as TXT or HTML.
Stay focused with 25-minute work sessions and timed breaks. Customizable.
Count down to any date or event. Live days, hours, minutes, seconds.
Precise stopwatch with lap times, split tracking, and millisecond accuracy.
Test typing speed and accuracy. WPM, CPM, and error tracking.
Generate printable monthly calendars for any month and year.
Browser notepad with tabs and auto-save. Your data stays local.
View time in multiple cities. Compare timezones with day/night indicators.
Draw, sketch, and brainstorm. Colors, pen sizes, export as PNG.
Track daily habits with streaks. 7-day grid view. Auto-saves locally.
Preview how your YouTube thumbnail looks before publishing.
Score your blog headlines for SEO, engagement, and CTR.
Extra-large fullscreen clock. Dark/light mode. Perfect bedside clock.
Track daily medications. Check off when taken. Saved locally.
Printable ICE wallet card. Medical info, allergies, contacts.
Paste text, see it huge. Up to 72px. High contrast. Read aloud.
Compare two products at the store. Find the better deal.
PDF merger, image resizer, SVG editor, Tailwind converter, and 440 more on the way.