Herramientas gratuitas en línea
Herramientas prácticas para el trabajo independiente. Sin registro. Negocios, Facturas, Vendedores, PDF, Imágenes, Texto, Desarrollo, Correo
Presupuesto de proyectos
Price your time and direct costs.
Beneficio de proyectos
Measure profit after labor and fees.
Tarifa por hora freelance
Plan a rate from annual income and billable time.
Punto de equilibrio
Find the sales volume needed to cover fixed costs.
Calculadora de descuentos
Calculate sale prices and savings.
Beneficio de comercio electrónico
Include shipping, platform fees, advertising and refunds.
Comisiones de plataformas
Estimate fees using your own platform rates.
ROAS publicitario
Compare attributed revenue with advertising spend.
Reparto de gastos de envío
Allocate shipment cost by total item weight.
Fecha de vencimiento
Calculate a due date from invoice terms.
Presupuesto en PDF
Create a document and print or save it as PDF.
Generador de facturas
Create a document and print or save it as PDF.
Generador de recibos
Create a document and print or save it as PDF.
Contador de palabras y caracteres
Count text length and reading time.
Conversor de mayúsculas
Convert text to upper, lower, title or sentence case.
Eliminar líneas duplicadas
Keep the first occurrence of each exact line.
Comparar líneas de texto
Compare exact lines in two texts; order changes appear as differences.
Formateador JSON
Validate and pretty-print JSON.
Conversor de marcas de tiempo
Convert Unix seconds or milliseconds to UTC and local time.
Codificar y decodificar URL
Encode or decode a URL component.
Probador de expresiones regulares
Test JavaScript patterns in an isolated worker.
Revisar asunto del correo
Check subject length without claiming deliverability.
Generador de enlaces de correo
Build and preview a mailto link with recipients, subject and body.
Generador de firmas de correo
Preview a signature and copy it into your mail settings.
Generador de correos de ejemplo
Generate sample email addresses from random names or a TXT username list.
Extraer y agrupar correos
Extract email addresses from text or HTML and group by size or domain.
Formateador de código
Format JavaScript, CSS, HTML, XML and SQL in your browser.
Imagen y Base64
Convert image files to Base64 and decode Base64 image data.
SVG a imagen
Convert SVG files or source to PNG, JPG and WebP.
Conversor Markdown
Edit and preview Markdown, or convert HTML to Markdown.
Comprimir imágenes
Process JPEG, PNG and WebP images locally, including batches.
Cambiar tamaño de imágenes
Process JPEG, PNG and WebP images locally, including batches.
Convertir imágenes
Process JPEG, PNG and WebP images locally, including batches.
Marca de agua en imágenes
Process JPEG, PNG and WebP images locally, including batches.
Imágenes a PDF
Files are processed in your browser. Encrypted PDFs are not supported.
Unir PDF
Files are processed in your browser. Encrypted PDFs are not supported.
Extraer páginas PDF
Files are processed in your browser. Encrypted PDFs are not supported.
Reordenar páginas PDF
Files are processed in your browser. Encrypted PDFs are not supported.
Verificar direcciones
Check syntax, duplicates and common domain spelling mistakes in email lists.
Analizar cabeceras
Inspect routing, authentication results and visible privacy details from raw email headers.
Analizar rebotes
Explain common SMTP and enhanced delivery status codes in bounce messages.
Revisar contenido
Review subject length, links, image descriptions and common promotional wording.
DNS y autenticación
Query MX, SPF, DKIM and DMARC; draft SPF and DMARC records.
Privacidad y enlaces
Mask email addresses and inspect URL structure without opening links.
Operaciones de listas
Merge lists, calculate intersections and differences, and export domain statistics.
Buscar correos en archivos
Extract unique addresses from pasted content or local TXT, CSV, HTML and EML files.
Plantillas de correo
Create an HTML email and a plain-text version from editable message fields.
Editor HTML y CSS en línea
Preview HTML email, inline static CSS at a selected width and inspect compatibility risks.