Free Online Tools for Your Files

Generate all key social formats in one click (Instagram, Facebook, LinkedIn, X, YouTube, TikTok) from a single image. 100% browser-based.

Convert scanned PDFs and screenshot images (PNG, JPG, WebP) into clean Markdown optimized for AI workflows.

Extract and analyze all JavaScript embedded in a PDF: document-level scripts, AcroForm field actions, and XFA scripts. Automatic detection of common errors.

Drop an .eml or .msg file: extract the email body and all PDF attachments, merged into a single PDF. 100% local, no upload. One-click tool!

Automatically remove IPs, emails, names, and domains from your server logs for privacy and GDPR compliance. 100% local processing, no data sent.

Turn rough requests into clear, structured prompts optimized for modern AI models. Output is generated in English by design.

Share your files via a unique, secure link. Set expiration, password, or download limits. Free, no sign-up required.

Share a password or API key via an encrypted, single-use link (burn after reading). AES-256, free.

Share any file (≤25 MB) via an encrypted, single-use link. Antivirus scan, AES-256-GCM. Free.

Generate cryptographically secure passwords. Customize length, character sets and check strength. 100% in the browser.

Generate UUID v4 (random) or v7 (sortable by date). Batch export. 100% in the browser, free.

Generate easy-to-remember but secure passwords based on pronounceable syllables. Entropy and strength displayed.

Analyze password strength: entropy, estimated crack time, pattern detection. 100% local.

Anonymize your data: emails, phone numbers, names, IBANs. Replace sensitive information with asterisks or dummy values. 100% local.

Remove all metadata (EXIF, XMP, IPTC, docProps) from your images, PDFs and Office documents. Deep server-side cleaning with ExifTool.

Automatically detect personal data in text: emails, phone numbers, IBAN, credit cards, SSN, IPs, URLs with identifiers. 100% local.

Generate SSH keys (RSA, Ed25519, ECDSA) directly in your browser. OpenSSH format, optional passphrase. 100% local, never sent.

Inspect X.509 certificates, CSRs and PEM private keys: subject, issuer, validity, SANs, fingerprints. 100% browser, no upload.

Compress your JPG, PNG, and WebP images directly in your browser. Adjustable quality, no server upload. 100% private and free.

Resize your images by pixels or using social media presets (Instagram, Facebook, LinkedIn). 100% in the browser.

Convert images between JPEG, PNG, WebP, AVIF, and GIF instantly in the browser. Free, no sign-up, 100% private.

Generate all key social formats in one click (Instagram, Facebook, LinkedIn, X, YouTube, TikTok) from a single image. 100% browser-based.

Convert your iPhone HEIC/HEIF photos to JPEG. Multi-file, ZIP download. 100% in the browser, free.

Add a text watermark to your images. Position, opacity, rotation and tile pattern. 100% in the browser, free.

Convert SVG to PNG or JPG at high resolution (1x, 2x, 4x). 100% in the browser, free.

Extract text from images (JPG, PNG, WebP, BMP, TIFF) or scanned PDFs using OCR. 14 languages supported. Images processed locally, PDFs server-side.

Convert scanned PDFs and screenshot images (PNG, JPG, WebP) into clean Markdown optimized for AI workflows.

Inspect and erase EXIF metadata (GPS, camera, dates) from your photos before sharing. 100% in the browser, no data sent.

Make an image background transparent using flood-fill. Ideal for logos and illustrations. 100% in the browser.

Compare two images side-by-side with a before/after slider. Ideal for checking compression or edits. Free.

Generate multi-size favicons (ICO, PNG, SVG) and the associated manifest.json. 100% in the browser.

Crop your images with precision. Select the area to keep, choose an aspect ratio (1:1, 4:3, 16:9, 9:16) and download the result. 100% browser-based.

Rotate your images at 90°, 180° or 270° and apply horizontal or vertical mirroring. 100% browser-based.

Extract dominant colors from any image. Get a harmonious palette with HEX, RGB, and HSL codes. 100% browser-based, free.

Inspect photo EXIF metadata: camera, lens, ISO, GPS with map. 100% browser-based, no upload.

Combine multiple JPG, PNG, or WebP images into an animated GIF. Configurable delay per frame. Free server-side processing.

Add styled text to your images with full control: font, size, color, position, and shadow. Export PNG or JPEG. 100% browser-based.

Select and blur sensitive areas on your images. Faces, license plates, personal data. 100% browser-based.

Trim your video between two timestamps directly in the browser. FFmpeg.wasm, no re-encoding when possible. Nothing uploaded.

Convert your videos to MP4 (H.264/AAC), WebM (VP9/Opus) or GIF directly in the browser. Configurable bitrate and resolution.

Compress videos with a target size (MB) or target bitrate (kbps). H.264 'slow' preset for solid compression. 100% browser.

Convert a video segment to a high-quality GIF using two-pass palette encoding. Frame rate, width, start/end configurable.

Extract a precise frame from your video as PNG or JPEG, or a batch of N evenly-spaced frames. HTML5 preview, 100% browser.

Convert audio files between MP3, OGG, WAV and AAC directly in the browser via FFmpeg.wasm. No upload required.

Extract the audio track from a video file (MP4, MKV, AVI…) to MP3, OGG or WAV. 100% browser processing via FFmpeg.wasm.

Cut and extract a portion of an audio file (MP3, OGG, WAV…). Selection by range sliders, 100% browser via FFmpeg.wasm.

Normalize the volume of your audio files via WebAudio API. Adjust target level in dB, WAV export. 100% browser.

Remove the audio track from a video (MP4, MKV, AVI, MOV…) without re-encoding. Get a muted video in seconds, 100% in the browser.

Combine multiple PDF files into a single document online. Drag and drop, reorder, and download the merged PDF. Free.

Separate a PDF into individual pages or extract specific pages (e.g., 1, 3-5, 7). Free tool, 100% in the browser.

Rotate one or all pages of a PDF at 90°, 180°, or 270°. Batch rotation included. Free and 100% in the browser.

Apply a text watermark on all pages of your PDF. Customize size, opacity, color, and position. Free.

Encrypt your PDF with a password. Manage print and copy permissions. Free tool, 100% in the browser.

Apply a signature image on one or all pages of your PDF. Adjustable position and size. Free, 100% in the browser.

Add text annotations to your PDF pages. Customizable color, size, and position. Free, 100% in the browser.

Add page numbers to an existing PDF. Customizable position and format. Free, 100% in the browser.

Edit the title, author, subject, keywords, and dates of a PDF file. 100% browser-based via pdf-lib. Free.

Delete, reorder and reorganize PDF pages. Drag and drop to rearrange. 100% browser-based via pdf-lib.

Mask sensitive areas in your PDF with black rectangles. Irreversible redaction via pdf-lib. 100% browser-based.

Visually compare two PDFs page by page side by side. Overlay mode for difference detection. 100% browser-based.

Extract and analyze all JavaScript embedded in a PDF: document-level scripts, AcroForm field actions, and XFA scripts. Automatic detection of common errors.

Drop an .eml or .msg file: extract the email body and all PDF attachments, merged into a single PDF. 100% local, no upload. One-click tool!

Convert your .docx, .xlsx, .pptx, .odt files to PDF via LibreOffice. Faithful and fast conversion. Free.

Export each page of your PDF as a high-quality PNG image (72 to 300 DPI). Individual or batch download.

Assemble multiple images (JPG, PNG, WebP) into a single PDF. Reorder before converting. Free.

Reduce your PDF file size for free. 4 quality levels: Screen, eBook, Print, Prepress. No installation required.

Extract raw text from a selectable PDF. Preview, copy, and export as .txt. Free online tool.

Attempt to recover and rebuild a damaged or partially corrupted PDF via qpdf. Free online tool.

Linearize your PDF for progressive loading in browsers (Fast Web View). Free online tool.

Convert Markdown content to a formatted PDF via LibreOffice. Headings, lists, code, links. Free online tool.

Convert a PDF to a Word document (.docx) via LibreOffice. Secure server processing. Free.

Convert a PDF to an Excel spreadsheet (.xlsx) via LibreOffice. Tables and data preserved. Secure server processing.

Convert a PDF to a PowerPoint presentation (.pptx) via LibreOffice. Each page becomes a slide.

Extract all embedded images from a PDF using pdfimages (poppler). Download as ZIP.

Convert HTML code to a PDF document via LibreOffice. Preserves styles and layout.

Convert a PDF to PDF/A-2b for long-term archival via Ghostscript. ISO 19005 standard.

Calculate and compare MD5, SHA-1, SHA-256, or SHA-512 file fingerprints. 100% in the browser. Verify your downloads.

Calculate MD5, SHA-1, SHA-256 hashes for multiple files at once. 100% local, no files uploaded.

Validate, format, and minify JSON. Syntax highlighting and file import. 100% in the browser.

Beautify or minify your HTML code online. Automatic indentation, whitespace cleanup. 100% browser-based, free.

Instantly convert between XML and JSON. Handles XML attributes, validates, formats, and copies in one click. 100% browser-based.

Encode/decode text or a file to Base64. Data URL and one-click copy. 100% in the browser.

Convert a Unix timestamp to a readable date and vice versa. ISO, RFC, and relative formats. 100% in the browser.

Count words, characters, sentences, and paragraphs in your text. Estimated reading and speaking time. 100% in the browser.

Generate Lorem Ipsum placeholder text as paragraphs, words, sentences, or lists. Customizable quantity, one-click copy. 100% browser.

Compare two texts and visualize differences line by line. Additions, deletions, modifications. Free.

Convert JSON to CSV and vice versa. File import and one-click export. 100% in the browser.

Convert your CSV files to Excel (.xlsx) in your browser. Choose your delimiter (comma, semicolon, tab) and download the result. 100% local.

Convert your Excel (.xlsx, .xls) files to CSV in your browser. Choose your delimiter and encoding. 100% local, free.

Convert colors between HEX, RGB, HSL, HSV and more. Real-time color preview. 100% in the browser.

Minify CSS or JavaScript to reduce your file sizes. 100% in the browser, free.

Generate SEO meta tags and Open Graph for your site. Real-time preview. Free.

Test and debug regular expressions in real time. Match highlighting, capture groups, flags. 100% browser-based.

Decode and inspect JSON Web Tokens. View header, payload, and check expiration. 100% browser-based, free.

Convert between YAML and JSON instantly. Validation, formatting, and one-click copy. 100% browser-based, free.

Convert text and CSV file encoding: UTF-8, ISO-8859-1 (Latin1), Windows-1252. Fix broken characters. 100% browser-based.

Split-view Markdown editor with real-time HTML preview. Export to HTML, copy the result. 100% browser-based, no data sent.

Encode or decode URLs and query parameters. encodeURIComponent / decodeURIComponent. 100% browser-based.

Encode or decode HTML entities (&, <, >, etc.). Protect your HTML code against XSS injections.

Create a complete robots.txt file with presets for Google, Bing and more. Visual interface with multiple rules.

Calculate Linux/Unix file permissions with a visual grid. Octal notation, symbolic notation and chmod command.

Create cron expressions visually with human-readable description. Common presets and next run times.

Convert a JSON array into a styled HTML table with live preview. Copy code and export.

Validate and format your YAML and TOML files. Detailed error messages with line numbers. 100% browser.

Create .env files visually with random secret generation. Export and copy in one click.

Format your SQL queries: MySQL, PostgreSQL, SQLite, T-SQL, BigQuery, PL/pgSQL, Spark. Uppercase keywords, configurable indent, minify mode. 100% browser.

Convert your text to 14 case formats: camelCase, PascalCase, snake_case, kebab-case, Title Case and more. Preserves accents. 100% browser.

Create CSS linear, radial and conic gradients with live preview. Export to plain CSS and Tailwind. 12 built-in presets. 100% browser.

Build CSS box-shadow with offset, blur, spread, color and inset. Stack multiple layers. Export to plain CSS and Tailwind.

Build complex CSS border-radius with 8 independent handles, organic blob mode and live SVG preview. Shorthand + individual properties exported.

Convert instantly between px, rem and em. Configurable base font-size, batch list mode, reference table. 100% browser.

Generate complementary, triadic, analogous, monochromatic palettes from a base color. Export to CSS variables, WCAG contrast included.

Compute network, broadcast, hosts, subnet mask and subnet splits from a CIDR notation. IPv4 + IPv6, with membership checker.

Paste HTTP response headers: CSP, Cache-Control, HSTS, Set-Cookie, Authorization — explained directive by directive. No outbound calls.

Paste any User-Agent: browser, OS, device. Bulk mode with CSV export and bot/crawler detection. 100% browser.

Build a curl command visually then export to fetch JS, axios or Python requests. Reverse-imports an existing curl command.

Lint docker-compose.yml: syntax, volume/network refs, healthchecks, mem_limit, 'latest' tags. Best practices with line numbers. 100% local.

Validate OpenAPI 3.x or Swagger 2.0 specs: structure, paths, components, security. Stats and JSON export. 100% local.

Draw your handwritten signature on a touch pad and export it as transparent PNG. 100% browser.

Clean your lists: remove duplicates, empty lines, whitespace. Sort, convert to lowercase. 100% browser.

Check the contrast ratio between two colors according to WCAG 2.1 standards (AA and AAA). Real-time preview.

Generate custom placeholder images (PNG or SVG). Configurable dimensions, colors and text.

Calculate the number of working days between two dates, or find the date after N working days. French public holidays included.

Create professional PDF invoices directly in your browser. Add your logo, line items, VAT, and download the PDF. 100% local.

Generate a QR code from a URL or text. Customizable colors, PNG and SVG export. Free, 100% in the browser.

Generate EAN-13, EAN-8, UPC-A, UPC-E, Code128, Code39, ITF-14, Codabar and MSI barcodes. Export as PNG or SVG. 100% browser-based, no installation.

Count tokens in your text for GPT-4o, Claude, Gemini, and other LLMs. API cost estimation. 100% in the browser.

Create a .ics file to add events to Google Calendar, Outlook, or Apple Calendar. Free, 100% browser-based.

Create ZIP archives from your files directly in the browser. Drag & drop, download. No files uploaded, 100% local.

Create a professional HTML email signature. Compatible with Gmail, Outlook and Apple Mail. Customize name, title, phone, logo.

Import a .eml file or paste a raw email and automatically extract signatures as clean HTML. Multi-signature detection, hosted images.

Extract files from ZIP archives directly in your browser. Preview and download contents. 100% local, no files uploaded.

Automatically remove IPs, emails, names, and domains from your server logs for privacy and GDPR compliance. 100% local processing, no data sent.

Chat with a locally hosted language model. Summaries, rephrasing, corrections, translations. Free.

Run a language model (Llama, Phi, Mistral) entirely in your browser using WebGPU. No data sent to any server. Free.

Turn rough requests into clear, structured prompts optimized for modern AI models. Output is generated in English by design.

Enter one prompt and compare multiple model profiles with automatic scores: clarity, constraints fit, length fit, and hallucination risk.

Use a curated prompt library by domain (support, marketing, dev, legal) with dynamic variables and reusable presets.

Detect ambiguities, conflicting instructions, and missing context. Get a corrected prompt version instantly.

Estimate prompt costs across multiple models, compare budget impact, and select the most cost-effective option.

Clean, compress, and split source documents into token-aware chunks ready for RAG pipelines and long-context prompting.