40 free, privacy-first browser-based tools to clean, compress, convert and check files. No upload, no server, no tracking.
- ✓Open-source license (MIT)
- ✓Actively maintained (<30d)
- ✓Clear description
- ✓Topics declared
- ✓Documented (README)
git clone https://github.com/presendapp/presendResumen de Tools
# Presend — Free Privacy Tools That Run in Your Browser [](https://presend.pages.dev) [](https://github.com/presendapp/presend/actions/workflows/api-tests.yml) [](https://presend.pages.dev) [](https://presend.pages.dev/api) [](https://god.gw.postman.com/run-collection/57808683-783f3f64-0f9f-433e-95f6-518520d14ccf?action=collection%2Ffork&collection-url=entityId%3D57808683-783f3f64-0f9f-433e-95f6-518520d14ccf%26entityType%3Dcollection%26workspaceId%3D8ffb507b-4140-4e42-8a44-fd6926d0b25b) [](LICENSE) [](https://presend.pages.dev) [](https://presend.pages.dev/privacy) **48 free browser-based tools to clean, compress, convert and check your files before you share them. Nothing is ever uploaded.** [Open Presend](https://presend.pages.dev) ## Why Presend? Unlike most online tools, **Presend processes everything locally in your browser**. Your files, photos, and documents never leave your device. No account, no upload, no tracking, no ads. - **100% Private** — Web Crypto API, Canvas API, FileReader — all client-side - **Instant** — Cloudflare CDN, loads in under 1 second globally - **PWA** — Install on mobile/desktop, works offline - **SEO-Optimized** — Schema.org markup (HowTo, FAQPage, SoftwareApplication), dynamic sitemap, Open Graph images - **Free Forever** — No freemium, no watermarks, no limits ## Tools (22) | Tool | What it does | Link | |---|---|---| | **EXIF Remover** | Strip GPS, camera model, timestamps from photos | [Open](https://presend.pages.dev/tools/exif-remover) | | **PDF Metadata Remover** | Remove author, software, dates from PDFs | [Open](https://presend.pages.dev/tools/pdf-metadata-remover) | | **Image Compressor** | Shrink JPG/PNG/WebP with quality preview | [Open](https://presend.pages.dev/tools/image-compressor) | | **PDF Compress** | Reduce PDF file size without quality loss | [Open](https://presend.pages.dev/tools/pdf-compress) | | **PDF Merger** | Combine multiple PDFs into one document | [Open](https://presend.pages.dev/tools/pdf-merger) | | **Image Resizer** | Resize to exact dimensions (Instagram, LinkedIn, Twitter) | [Open](https://presend.pages.dev/tools/image-resizer) | | **HEIC to JPG Converter** | Convert iPhone photos to universal JPG | [Open](https://presend.pages.dev/tools/heic-converter) | | **Video Metadata Remover** | Strip GPS and device data from MP4/MOV | [Open](https://presend.pages.dev/tools/video-metadata-remover) | | **Office Metadata Remover** | Clean Word, Excel, PowerPoint hidden data | [Open](https://presend.pages.dev/tools/office-metadata-remover) | | **File Hash Checker** | Verify SHA-256, SHA-1, SHA-512 checksums | [Open](https://presend.pages.dev/tools/file-hash-checker) | | **Password Generator** | Create cryptographically secure passwords | [Open](https://presend.pages.dev/tools/password-generator) | | **Password Strength** | Analyze password entropy and crack time | [Open](https://presend.pages.dev/tools/password-strength) | | **QR Code Generator** | Generate QR codes for URLs, WiFi, text | [Open](https://presend.pages.dev/tools/qr-code-generator) | | **URL Cleaner** | Remove tracking parameters (UTM, fbclid, gclid) | [Open](https://presend.pages.dev/tools/url-cleaner) | | **Email List Cleaner** | Deduplicate, validate, clean email lists | [Open](https://presend.pages.dev/tools/email-list-cleaner) | | **JSON to CSV Converter** | Convert between JSON and CSV instantly | [Open](https://presend.pages.dev/tools/json-csv-converter) | | **Image to Base64** | Encode images for embedding in HTML/CSS | [Open](https://presend.pages.dev/tools/image-to-base64) | | **Text Diff** | Compare two texts side by side | [Open](https://presend.pages.dev/tools/text-diff) | | **Text Formatter** | Bold, italic, stylized text for social media | [Open](https://presend.pages.dev/tools/text-formatter) | | **Thread Splitter** | Split long text into Twitter/X threads | [Open](https://presend.pages.dev/tools/thread-splitter) | | **Word Counter** | Count words, characters, reading time | [Open](https://presend.pages.dev/tools/word-counter) | | **Color Contrast** | Check WCAG accessibility contrast ratios | [Open](https://presend.pages.dev/tools/color-contrast) | ## SEO and Performance Presend is built for search engines and AI assistants: - **Schema.org**: HowTo, FAQPage, SoftwareApplication, BreadcrumbList, Organization on every page - **Dynamic Sitemap**: 842 URLs auto-updated (40 tools + blog/guide pages, across 8 languages) - **Dynamic OG Images**: API generates social preview images per tool - **Core Web Vitals**: Preconnect, DNS-prefetch, CSS preload, zero render-blocking JS - **PWA**: Service worker + manifest for offline use and installability - **Privacy-First Analytics**: Cloudflare Web Analytics (no cookies, no IP tracking) ## Embed on Your Site Add a Presend tool to your website or link back to us: [See all embed options](https://presend.pages.dev/embed) ## Tech Stack - **Frontend**: Vanilla HTML5, CSS3, ES6 (zero build step) - **Hosting**: Cloudflare Pages (200+ edge locations) - **APIs**: Cloudflare Workers (share links, analytics, sitemap, OG images) - **Storage**: Cloudflare KV (share links, 30-day TTL) - **PWA**: Service Worker + Web App Manifest ## License MIT — free to use, modify, and embed. [Open Presend](https://presend.pages.dev) # build trigger ven. 21 août 2026 10:18:19 CEST
Lo que la gente pregunta sobre presend
¿Qué es presendapp/presend?
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presendapp/presend es tools para el ecosistema de Claude AI. 40 free, privacy-first browser-based tools to clean, compress, convert and check files. No upload, no server, no tracking. Tiene 1 estrellas en GitHub y su última actualización registrada es del 2026-09-12.
¿Cómo se instala presend?
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Puedes instalar presend clonando el repositorio (https://github.com/presendapp/presend) o siguiendo las instrucciones del README en GitHub. ClaudeWave también te ofrece bloques de instalación rápida en esta misma página.
¿Es seguro usar presendapp/presend?
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Nuestro agente de seguridad ha analizado presendapp/presend y le ha asignado un Trust Score de 95/100 (tier: Verified). Revisa el desglose completo de comprobaciones superadas y flags en esta página.
¿Quién mantiene presendapp/presend?
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presendapp/presend es mantenido por presendapp. La última actividad registrada en GitHub es del 2026-09-12, con 4 issues abiertos.
¿Hay alternativas a presend?
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Sí. En ClaudeWave puedes explorar tools similares en /categories/tools, ordenados por popularidad o actividad reciente.
Despliega presend en tu cloud
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