What is lancar.top?
lancar.top is a free all-in-one online platform offering paste/code sharing, file converters (PDF, images, documents), media processing tools, QR code generator, URL shortener, and video watermark — all accessible from any browser.
Is lancar.top free to use?
Yes. All core features including paste sharing, file conversion, media tools, QR code generation, and video watermark are completely free. No account is required for most tools.
How does paste sharing work?
Type or paste your text/code on the home page, choose visibility and expiration settings, then click "Create Paste". You get a unique URL to share with anyone. Pastes support syntax highlighting for multiple programming languages.
How long are my pastes stored?
Storage duration depends on the expiration setting you select when creating a paste (e.g. 10 minutes, 1 hour, 1 day, 1 week, never). Pastes set to "never" are kept indefinitely unless removed by admin policy.
What file conversion tools are available?
lancar.top offers: Image Compression, Image Format Converter (PNG/JPG/WebP/BMP), PDF Compress, PDF Merge, PDF Split, PDF to Word, Word to PDF, Excel to PDF, PPT to PDF, and Text to PDF. All tools run either in your browser or securely on the server.
Are my files uploaded to a server during conversion?
Tools like Media Tools, Video Watermark, Image Compression, Image Converter, and Text to PDF process files entirely in your browser using WebAssembly and JavaScript. Your files never leave your device. Server-side tools (PDF merge, Word to PDF, etc.) upload files temporarily and delete them immediately after processing.
What is Media Tools and how does it work?
Media Tools is a browser-based audio and video converter powered by ffmpeg.wasm. It supports formats like MP4, AVI, MOV, MKV, WebM, MP3, WAV, AAC, FLAC, and OGG. Conversion happens 100% in your browser — no server upload. Requires Chrome or Edge with SharedArrayBuffer support.
What is the Video Watermark tool?
Video Watermark lets you add text or image watermarks to videos directly in your browser. You can choose watermark position (7 points), color, font size, opacity, and preview the result in real-time before processing. It uses ffmpeg.wasm so nothing is uploaded.
Does lancar.top have a QR Code generator?
Yes. The QR Code Generator lets you encode any text or URL into a QR code image. You can customize colors and download the result as a PNG file for use in print or digital media.
Is there a URL Shortener on lancar.top?
Yes. The URL Shortener creates compact, easy-to-share links that redirect to the original address. Great for social media, messaging, and print materials.
Which browsers are supported?
lancar.top works on all modern browsers. For Media Tools and Video Watermark (which use ffmpeg.wasm), Chrome and Edge are recommended because they support SharedArrayBuffer. Firefox and Safari may have limited support for these features.
What languages does lancar.top support?
The platform is available in 5 languages: English, Indonesian (Bahasa Indonesia), French (Français), Spanish (Español), and Russian (Русский). You can switch languages from the header menu.
Why does Media Tools or Video Watermark fail to load?
These tools require SharedArrayBuffer which needs specific security headers (COOP/COEP). Make sure you are using Chrome or Edge. If the issue persists, try disabling browser extensions or using incognito mode.
Is there a file size limit for conversion?
Browser-based tools (Media Tools, Video Watermark, Image Compression) depend on your device memory — typically up to a few hundred MB works well. Server-side tools may have upload limits configured by the administrator.
Does lancar.top have dark mode?
Yes. lancar.top features a dark mode toggle in the header. All pages and tools are fully styled for both light and dark themes. Your preference is saved automatically.
How can I report a bug or suggest a feature?
Use the Contact page to report bugs or suggest features. Please include steps to reproduce the issue and your browser version. This helps us prioritize fixes quickly.