Drop a file.
I pick the tool for you.
28 tools for images, video, audio, PDF and business paperwork. They run in your browser, without an account and without uploading anything. Tools for businesses (SEO, Google profile, reviews)
Your file never leaves your computer·no registration·no watermark·the same open source I use for clients
No file yet?
The QR code, invoice, e-mail signature and colour palette start from text or a form.
Images & Graphics
12 tools- Background RemovalRemove the background from photos with AI, locally in your browser. Ideal for product photos and e-shops.JPG · PNG · WEBP → PNG
- AI VectorizerTurn raster images (PNG, JPG) into clean vector SVG. Logos, icons and illustrations without quality loss, all local.PNG · JPG · WEBP → SVG
- Image ConverterConvert JPG and PNG to WebP. Cut file size by up to 80 % without visible quality loss.JPG · PNG · WEBP +5 → WEBP · JPG · PNG · AVIF
- Reduce photo sizeShrink photos for e-mail, web or e-shop. Quality slider or a target size in kB, up to 50 at once.JPG · PNG · WEBP +1 → JPG · PNG · WEBP · AVIF
- Image WatermarkAdd a text watermark with your name or website to a photo. Position, tiling, opacity.JPG · PNG · WEBP → PNG · JPG
- Mockup GeneratorCreate product mockups: phone, laptop, t-shirt, business card and more.PNG · JPG · WEBP → PNG
- SVG OptimizerOptimise SVG files online. Smaller size, no metadata, no redundant code.SVG → SVG
- Color Palette GeneratorGenerate harmonious colour palettes from an image or a colour. Export to CSS or Tailwind.JPG · PNG · WEBP → CSS · TAILWIND
- Favicon GeneratorUpload a logo and get every favicon size for your website: ICO, PNG, Apple Touch Icon.PNG · SVG · JPG → ICO · PNG
- HEIC to JPGTurn iPhone HEIC photos into JPG that opens on any computer, in e-mail and in e-shops.HEIC · HEIF → JPG
- File converterDrop a file and pick the format: images, video, audio, PDF to images and images into PDF.JPG · PNG · WEBP +20 → WEBP · JPG · PNG · AVIF · PDF · MP4 · WEBM · GIF · MP3 · WAV · OGG · M4A · ZIP
- Image to text (OCR)Reads text from a photo, screenshot, receipt or scanned PDF. Czech and English.JPG · PNG · WEBP +3 → TXT
Video & Audio
6 tools- Video to GIFTurn a video into an animated GIF. Set fps, size and the time range directly in your browser.MP4 · WEBM · MOV +1 → GIF
- Video ConverterConvert MP4 to WebM. Smaller videos for the web without uploading anything.MP4 · MOV · MKV +2 → WEBM · MP4
- Subtitle generatorTurns speech in a video or recording into subtitles. Czech and English, editable text, SRT and VTT export.MP4 · MOV · MKV +6 → SRT · VTT · MP4
- Audio ToolsTrim, compress and convert audio files. MP3, WAV and more.MP3 · WAV · OGG +3 → MP3 · WAV · OGG
- MP4 to MP3Pull just the sound out of an MP4, MOV or WebM video and save it as MP3.MP4 · MOV · WEBM +3 → MP3
- Text to speechHave a Czech text read aloud and download it as MP3 or WAV. The voice runs in your browser.text · URL → MP3 · WAV
PDF Tools
6 tools- PDF EditorEdit PDF files online: add text, a signature or images. Merge and split included.PDF → PDF
- PDF MergeJoin several PDF files into one. Drag, reorder, download.PDF → PDF
- PDF SplitSplit a PDF into parts. Pick pages or ranges and download them as a ZIP.PDF → PDF · ZIP
- PDF CompressionShrink PDF files by compressing the images inside without visible quality loss.PDF → PDF
- PDF to JPGTurn PDF pages into JPG or PNG images. More pages download as a ZIP.PDF → JPG · PNG · ZIP
- JPG to PDFPut JPG, PNG, WebP or HEIC photos into a single PDF. Order, page size and margin.JPG · PNG · WEBP +6 → PDF
E-shop & Business
4 tools- Invoice GeneratorCreate invoices online with PDF export, Czech formatting and a payment QR code.form → PDF
- Email Signature GeneratorCreate an HTML e-mail signature with your logo, social links and contacts.form → HTML
- QR Code GeneratorCreate your own QR code with a logo, custom colours and text.text · URL → PNG · SVG
- Password generatorStrong random passwords or passphrases. Strength in bits, nothing is sent or stored.form → TEXT
Tools that help you get more customers
For business owners who want to know where their website or Google profile stands. No registration, nothing is sent to me.
- Standalone pageabout 30 s
Website SEO test
Enter an address and see right away what the site is missing for Google: titles, descriptions, headings, mobile speed, structured data.
You get: Results plus a comparison with 598 business websites from Ostrava, as a percentile.
Test a website - Inside the article on profile mistakesabout 2 min
Google Business Profile check
12 questions about your profile on Google Maps. Weights based on the Whitespark Local Search Ranking Factors 2026 survey.
You get: A score out of 100, fixes ordered by what matters most, and what does not affect rankings.
Check your profile - Inside the article on fake reviewsabout 1 min
Review request generator
Paste the review link from your profile and your business name. The texts follow Google's review rules.
You get: A downloadable QR code for the counter or invoice and ready-made messages for SMS, e-mail and WhatsApp.
Create a request - Standalone pageabout 1 min
Website price calculator
A few questions about what you need: website, e-shop, app or online course, data migration, SEO, care.
You get: A ballpark price based on my current price list, not a made-up market average.
Calculate the price
No catch, just the tools I use myself
- Files stay on your computer
- Conversion, PDF editing, background removal and video run inside your browser via WebAssembly. Nothing is uploaded to my server.
- No account, no limits
- Open the tool, drop a file, download the result. I do not collect e-mails and I do not watermark exports.
- Built from the same open source I use for clients
- The same libraries I ship in custom websites and e-shops. When a tool is not enough, the next step is a custom app.
- Something missing?
- Tell me which tool you keep looking for. The most requested ones are the next I build.
Need a tool built for your business, connected to your e-shop?
These are the public versions. For companies I build the same tools connected to data, stock or Shoptet.