Herramientas Online Gratis

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Herramientas PDF

15 herramientas

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CSV to PDF

Drop a CSV and get a beautifully formatted PDF table in seconds.

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PDF Merge

Combine multiple PDFs into one file. Drag to reorder pages.

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PDF Compress

Shrink any PDF's file size with three quality presets.

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PDF Split

Extract pages or split a PDF into smaller files instantly.

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PDF Rotate

Rotate all or selected pages of a PDF to any angle.

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PDF to JPG

Convert each PDF page into a high-quality JPG image.

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Image to PDF

Turn JPG, PNG, and WebP images into a single PDF.

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Excel to PDF

Convert Excel spreadsheets to well-formatted PDF documents.

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Lock PDF

Add password protection to any PDF with AES encryption.

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Unlock PDF

Remove password protection from PDFs you own.

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PDF to Markdown

Extract a text-based PDF into clean Markdown — auto-detects headings, lists and bold.

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PDF Watermark

Add text or image watermarks to any PDF — custom opacity, position and angle.

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PDF Page Numbers

Add customisable page numbers to any PDF — position, font, start offset.

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PDF Delete Pages

Remove one or more pages from a PDF instantly.

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PDF to Text

Extract all readable text from a PDF — preserves paragraph breaks.

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Texto y Listas

11 herramientas

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Word Counter

Count words, characters, sentences, reading time and keyword density live.

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Case Converter

Switch text between 12 cases: UPPER, lower, camelCase, snake_case and more.

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Lorem Ipsum Generator

Generate placeholder text by words, sentences or paragraphs. Copy HTML too.

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Duplicate Line Remover

Remove duplicate lines with case-insensitive matching and whitespace trimming.

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Text Reverser

Reverse text by characters, words, lines or reverse each word individually.

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Whitespace Cleaner

Remove extra spaces, blank lines, tabs and trailing whitespace from text.

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Sort Lines

Sort lines A→Z, by length, numerically or shuffle randomly. Remove dupes too.

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Text to Binary

Convert text to binary, hex, octal or decimal with custom separators.

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Binary to Text

Decode binary, hex, octal or decimal codes back to readable text.

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AI Content Detector

Transparent, signal-by-signal estimate of how AI-generated a text looks. Heuristic — not proof.

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Fancy Text Generator

Turn text into 30+ Unicode font styles — 𝓫𝓸𝓵𝓭, 𝕕𝕠𝕦𝕓𝕝𝕖, strikethrough, upside down — for social bios.

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Herramientas de Imagen

8 herramientas

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Image Compressor

Compress JPG, PNG and WebP images without visible quality loss.

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Image Resizer

Resize images to exact pixel dimensions, percentage or common presets.

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Image Crop

Crop images with drag-to-select and preset aspect ratios.

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PNG to JPG

Convert PNG files to JPG with adjustable quality and background color.

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JPG to PNG

Convert JPG images to lossless PNG format. Batch supported.

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Image to Base64

Encode any image as a Base64 data URL for embedding in HTML/CSS.

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Favicon Generator

Generate favicons in all sizes (16×16 to 512×512) from one image.

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Image Pixelator

Add a Minecraft / 8-bit pixelate effect to the whole image or a rectangular region.

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SEO y Web

7 herramientas

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Keyword Density Checker

Analyze keyword frequency and density in any text. Catch over-optimization before publishing.

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Long Tail Keyword Generator

Generate hundreds of long tail keyword ideas from any seed keyword — questions, buyers, modifiers and more.

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Keyword Extractor

Extract the most important keywords and phrases from any text with frequency analysis and tag cloud.

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Keyword Combiner

Combine multiple keyword lists (A × B × C) for PPC ad groups. Supports all match types.

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SERP Preview

Preview how your title and meta description look in Google results. Check pixel widths live.

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Meta Tags Generator

Generate complete SEO meta tags — basic, Open Graph and Twitter Cards — with live HTML output.

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Meta Tags Analyzer

Paste any HTML to analyze all meta tags and get instant SEO recommendations and a score.

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Desarrollador

20 herramientas

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JSON Formatter

Pretty-print, validate and minify JSON with syntax highlighting.

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Base64 Encode / Decode

Encode strings or files to Base64 or decode Base64 back to text.

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URL Encode / Decode

Percent-encode URLs or decode percent-encoded strings.

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HTML Encode / Decode

Escape HTML entities or unescape them back to characters.

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Regex Tester

Test regular expressions live with match highlighting and capture groups.

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Password Generator

Generate strong random passwords with strength meter and passphrase mode.

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Hash Generator

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from text or files.

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Color Converter

Convert between HEX, RGB, HSL, HSV, CMYK with palette generator.

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CSS Minifier

Minify CSS to reduce file size or beautify compressed CSS.

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Binary Right Shifter

Logical or arithmetic right shift on binary numbers — unlimited, self-length or truncated.

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Hex to Binary

Convert hexadecimal to binary with optional 0b prefix, byte padding and group spacing.

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QR Code Generator

Create QR codes for URLs, Wi-Fi, email and text. Custom colors and size, PNG/SVG download.

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QR Code Reader

Decode a QR code from an image or your camera. URLs, Wi-Fi, contacts and text.

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Unix Timestamp Converter

Convert epoch seconds / milliseconds to a human date and back. Live current timestamp.

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UUID Generator

Bulk-generate cryptographically random v4 UUIDs with uppercase, no-dash and brace options.

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Diff Checker

Compare two texts side by side with added / removed lines highlighted. Ignore case & whitespace.

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JWT Decoder

Decode a JSON Web Token header and payload, with readable expiry / issued-at. Decoding only.

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JSON ↔ CSV ↔ YAML

Convert structured data between JSON, CSV and YAML in any direction, instantly.

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Code Formatter & Minifier

Beautify or minify JSON, JavaScript, CSS, HTML, XML and SQL right in your browser.

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Invoice Generator

Create a professional PDF invoice online. Fill in details and line items — download instantly, no sign-up.

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Calculadoras

16 herramientas

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Age Calculator

Calculate exact age in years, months, days, hours and minutes from a birth date.

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BMI Calculator

Calculate Body Mass Index with metric or imperial units and see your category.

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Percentage Calculator

Six ways to calculate percentages, increases, decreases and differences.

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Unit Converter

Convert length, weight, temperature, area, volume, speed, time and data.

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Read Time Estimator

Paste any text and instantly see reading time, speaking time and readability.

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Number Base Converter

Convert between binary, octal, decimal, hexadecimal and any custom base.

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Hours to Days

Convert hours to days with configurable decimal precision and optional "days" suffix.

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Time to Military Time

12-hour or 24-hour clock to military format with optional seconds, colons and "hours" suffix.

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Loan / EMI Calculator

Monthly instalment, total interest and a yearly amortization table for any loan.

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Mortgage Calculator

Full monthly payment — principal & interest plus tax, insurance and HOA.

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Tip Calculator

Calculate the tip and split the bill between any number of people, with rounding.

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Discount Calculator

Sale price and savings from a percentage discount, including a stacked second discount.

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VAT / Sales Tax Calculator

Add or remove VAT / GST / sales tax at any rate. See net, tax and gross.

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Date Difference Calculator

Exact years / months / days between two dates, plus total days, weeks and weekdays.

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Countdown Timer

Live countdown of days, hours, minutes and seconds to any date — deadlines, launches, new year.

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Timer / Stopwatch

Stopwatch, countdown and Pomodoro timer all in one. Lap times, alarm chime and auto work/break cycles.

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Aleatorio

7 herramientas

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Random Date Generator

Generate any number of random dates in any format within a chosen range.

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Random Item Picker

Pick N items at random from any list. Allow or disallow duplicates, custom delimiters.

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Spin the Wheel

A customizable random wheel picker — add entries, spin, and let the wheel decide. Names, prizes, yes/no.

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Dice Roller

Roll any dice — D4 to D100 or custom — with modifier and roll history. Cryptographically random.

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Coin Flip

Heads or tails — flip one coin or many at once with a running tally. Fair and random.

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Random Number Generator

Random integers or decimals in any range, in bulk, with optional uniqueness and sorting.

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Random Name Generator

Generate full names, first/last names or catchy usernames in bulk for test data and sign-ups.

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Etiquetas de Envío

5 herramientas

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Shipping Label Resizer

Resize any carrier label (UPS, USPS, FedEx, DHL) from 8.5×11 / A4 to 4×6 thermal, A6 or custom size.

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UPS Label Resizer

Convert UPS WorldShip / ups.com 8.5×11 PDFs to 4×6 thermal labels. Auto-crops the top-left label region.

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USPS Label Resizer

Click-N-Ship, Stamps.com, Pirate Ship → 4×6 thermal. Crop top-half, scale to A6, half-page, or custom.

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FedEx Label Resizer

FedEx Ship Manager and fedex.com PDFs to 4×6 thermal. Preserves PDF417 / MaxiCode barcodes.

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DHL Label Resizer

MyDHL+, DHL Express, DHL eCommerce A4 PDFs → 4×6 thermal, A6 or any custom size.

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Emojis

24 herramientas

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Smileys & People

Faces, emotions, hands, body parts, people, occupations and clothing emojis.

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Animals & Nature

Animals, insects, plants, weather, moon, stars and nature symbols.

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Food & Drink

Fruits, vegetables, meals, desserts, drinks and kitchen utensils.

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Activity

Sports, games, music instruments, hobbies and medals.

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Travel & Places

Vehicles, buildings, landmarks, space and travel symbols.

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Objects

Technology, tools, books, money, medical and household items.

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Symbols

Hearts, arrows, clocks, zodiac, religious symbols and geometric shapes.

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Flag Emojis

All 260+ country and regional flag emojis. Copy any flag instantly.

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Heart Emojis

All heart colors, love symbols, broken hearts and romance emojis.

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Angry Emojis

Mad, furious, annoyed and angry face emojis with anger symbols.

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Birthday Emojis

Birthday cake, balloons, party poppers and celebration emojis.

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Celebration Emojis

Party, confetti, trophy and festive celebration emojis.

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Christmas Emojis

Christmas tree, Santa, snowflake, gifts and holiday emojis.

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Funny Emojis

Laugh-out-loud, silly and hilarious funny face emojis.

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Good Morning Emojis

Sun, coffee, sunrise and cheerful good morning emojis.

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Good Night Emojis

Moon, stars, sleep and night sky emojis for bedtime messages.

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Halloween Emojis

Pumpkin, ghost, witch, skull and spooky Halloween emojis.

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Happy Emojis

Joyful, cheerful and uplifting happy face emojis.

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Instagram Emojis

Most-used emojis for Instagram captions, bios and Stories.

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Love Emojis

Love, romance and affection emojis beyond just hearts.

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New Year Emojis

Fireworks, champagne, party and countdown emojis for New Year.

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Sad Emojis

Crying, tearful and sorrowful sad face emojis.

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TikTok Emojis

Most-used emojis for TikTok videos, comments and captions.

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WhatsApp Emojis

Most-used WhatsApp emojis for chats, reactions and status messages.

Todas las Herramientas

Herramientas PDF

CSV to PDF

PDF Merge

PDF Compress

PDF Split

PDF Rotate

PDF to JPG

Image to PDF

Excel to PDF

Lock PDF

Unlock PDF

PDF to Markdown

PDF Watermark

PDF Page Numbers

PDF Delete Pages

PDF to Text

Texto y Listas

Word Counter

Case Converter

Lorem Ipsum Generator

Duplicate Line Remover

Text Reverser

Whitespace Cleaner

Sort Lines

Text to Binary

Binary to Text

AI Content Detector

Fancy Text Generator

Herramientas de Imagen

Image Compressor

Image Resizer

Image Crop

PNG to JPG

JPG to PNG

Image to Base64

Favicon Generator

Image Pixelator

SEO y Web

Keyword Density Checker

Long Tail Keyword Generator

Keyword Extractor

Keyword Combiner

SERP Preview

Meta Tags Generator

Meta Tags Analyzer

Desarrollador

JSON Formatter

Base64 Encode / Decode

URL Encode / Decode

HTML Encode / Decode

Regex Tester

Password Generator

Hash Generator

Color Converter

CSS Minifier

Binary Right Shifter

Hex to Binary

QR Code Generator

QR Code Reader

Unix Timestamp Converter

UUID Generator

Diff Checker

JWT Decoder

JSON ↔ CSV ↔ YAML

Code Formatter & Minifier

Invoice Generator

Calculadoras

Age Calculator

BMI Calculator

Percentage Calculator

Unit Converter

Read Time Estimator

Number Base Converter

Hours to Days

Time to Military Time

Loan / EMI Calculator

Mortgage Calculator

Tip Calculator

Discount Calculator