Convert without uploads Calculate without accounts Work in your browser
Pick a tool, drop a file, or enter values. kittokit does the work locally in your tab.
Drop a file here
kittokit recognizes the format and shows you the tools that fit. The file stays in your browser.
- JPG
- PNG
- HEIC
- WEBP
- MP4
- MOV
- MP3
- WAV
- CSV
- JSON
File tools
Where local actually matters
Images, GPS data, and voice recordings stay on your device.
- AudioAudio TranscriptionHours of audio, zero typing, your browser does the listening.
- ImagesHEIC to JPG ConverterApple loves HEIC. The upload form for your new job hates it.
- ImagesRemove Image BackgroundCut out the person, trash the background. The AI runs on your device, not our servers.
- ImagesRemove MetadataDetects EXIF, GPS, author and XMP in JPG, PNG, WebP and PDF, and removes them on demand.
- PDF ToolsSearchable PDFScan in, searchable PDF out. The page image stays pixel for pixel, and on top of it sits text you can select, copy and find.
Browse the catalog
217 tools, sorted by what you are trying to get done.
- FinancePaycheck Calculator 2026You negotiated $100k. Your paycheck says $5,800. Where did the rest go?
- Construction & RenovationMasonry CalculatorBrick or block count per m² wall area, normal vs. thin-bed mortar volume, multi-wall builder and first-row levelling estimate, the masonry calculator that catches the most common beginner mistakes.
- LengthMeters to Feet ConverterType meters to get feet, or feet to get meters, both directions, instantly.
- Passwords & HashingSecure Password GeneratorIT requires '1 uppercase, 1 symbol, 12 characters'. Just click generate.
- Code FormattersJSON Formatter & Validator OnlineThe API returned 3 megabytes of unformatted JSON on a single line.
- PDF ToolsReorder PDF PagesReorder PDF pages by drag-and-drop, entirely in your browser, your file never leaves your device.
- ImagesQR Code GeneratorNobody is going to type a 50-character URL from your flyer into their phone.
- TextCrossword puzzle makerEnter words and clues, build the grid, print it on A4. With ranked layouts, a hidden word and a straight answer on which words did not fit.
- ImagesPhoto to Coloring PageTurn your photo into a printable coloring page. No upload, no account, no tracking.
- VideoHEVC to H.264 ConverterYour iPhone video plays as a black screen on your TV. Let's fix that.
- VideoCompress VideoSmaller, faster, private, right in your browser.
- ImagesImage ResizerPixel-precise resizing instead of awkward cropping, your originals never leave the device.
- ImagesJPG CompressorPick a quality, see the difference, download the smaller file, all inside your browser.
- ImagesAI Image UpscalerSmall pixels in, double-edge pixels out. A neural network invents the missing detail, on your device, never on a server.
- AudioAudio TrimmerFind the right slice, hear it back, export it, without anyone else seeing your file.
- VideoWebcam Background BlurThe video call starts in 3 minutes, and you haven't cleaned your room.
- PDF ToolsPDF MergerCover letter, resume, and references, HR wants one PDF, not five attachments.
- PDF ToolsPDF CompressorYour email provider says: 'Attachment too large (Max 25 MB)'. Annoying.
- PDF ToolsPDF SplitterThe accountant only needs pages 4 to 7. Don't send them the 100-page manual.
- PDF ToolsJPG to PDF ConverterThe portal demands a PDF, you have three JPGs on your phone. Let's stitch them together.
- PDF ToolsSign PDF onlineDraw your signature, drag it onto the right page, download the signed PDF. Your file never leaves your browser.
- Markdown ConvertersPDF to MarkdownConverts PDFs to Markdown, text layer directly, scanned pages via OCR. All in your browser tab.
- TextWord CounterType or paste your text, words, characters, reading time and AI tokens update letter by letter.
- TextText Diff ToolSomeone edited the document, but nobody turned on Track Changes.
- FinancePaycheck Calculator 2026You negotiated $100k. Your paycheck says $5,800. Where did the rest go?
- FinanceLoan Payment CalculatorThe dealer offers 6% financing. How much is that actually costing you?
- FinanceSales Tax & VAT CalculatorThe price tag says $99. Your credit card says $106.87. Welcome to US sales tax.
- Construction & RenovationTile CalculatorPattern-aware waste, DIN-compliant thinset coverage, and dye-lot reminder, the tile calculator that gives you more than just square feet.
- HealthBMI CalculatorBMI with three modes: Adults (WHO), Children 2–17 (Kromeyer-Hauschild) and Seniors 65+ (DGE). Optional waist metrics and athlete pointer. All in the browser, no data storage.
- PersonalityFree IQ Test & Multiple IntelligencesDiscover your estimated IQ score and personalized multiple intelligences profile.
- Nature & AstronomyMoon Phase CalculatorNeed to know if tomorrow is a full moon? Here's the exact answer.
- AutomotiveMPG CalculatorThree calculators in one: economy, unit conversion and annual fuel cost, with US gallon, UK imperial gallon and metric L/100 km in parallel.
- LengthMeters to Feet ConverterType meters to get feet, or feet to get meters, both directions, instantly.
- LengthCentimeters to Inches ConverterThe IKEA desk says it's 120 cm wide. Your measuring tape only speaks inches.
- WeightKilograms to Pounds ConverterThe European airline limits your bag to 23 kg. You need to know if you can pack more shoes.
- TemperatureCelsius to Fahrenheit ConverterThe European oven says 200 degrees. Your recipe says 400. Who's right?
- LengthKilometers to Miles ConverterThe sign says 100 km/h. Here is how to know if that's a ticket.
- AreaSquare Meters to Square Feet ConverterShopping for a 90 square meter apartment in Europe? Here's what that means.
- VolumeLiters to Gallons ConverterYour European rental car gets 6 liters per 100km. Is that good?
- TimeTime Zone ConverterThe invite says 2:00 PM EST. When exactly do you need to be on the call?
- Code FormattersJSON Formatter & Validator OnlineThe API returned 3 megabytes of unformatted JSON on a single line.
- Code FormattersRegex TesterThe email validator broke production. You need to know why.
- Passwords & HashingJWT DecoderThe API returned a 401 Unauthorized. Is the token expired or missing the admin role?
- Data ConvertersBase64 Encoder and Decoder OnlineThe API wants a Base64 auth string. Please don't paste your password on a random server.
- Passwords & HashingUUID GeneratorThe database needs 50 unique keys for test data. You can't just type 'id1' 50 times.
- Passwords & HashingHash GeneratorGenerate cryptographic hashes instantly in your browser.
- CSS GeneratorsCSS Gradient GeneratorThe designer knows the effect. The code shows why OKLCH rescues the muddy middle.
- Server & DevOps.htaccess GeneratorCompose rules visually, see module dependencies, export for Apache 2.4 and Cloudflare Pages from the same list. With an HSTS preload checklist built in.
Why the browser
What changes when nothing gets uploaded
Most online converters send your file to a server, process it there and send the result back. kittokit does the work in your browser. The server only delivers the page.
Your file stays on your device
Images, PDFs and voice recordings are processed in the tab. Nothing gets uploaded, so no copy ends up on someone else’s server.
No account needed
Open the page and start. No email address, no trial that runs out, no watermark on the result.
No waiting for uploads
A large file does not have to travel up and back down again. AI tools download their model the first time you use them, after that your device does the work.
In numbers
Built for data that is nobody else’s business.
- 0 bytes
- of your files on a kittokit server
- 217
- tools, all free and without an account
- 4
- languages: German, English, French, and Spanish