CASTARA
File conversion tools
Choose a category, then select the tool that matches your input and required output. Each tool shows the file types it accepts.
Image tools
Compress, resize and change image formats.
Image Compressor
Shrink JPEG, PNG and WebP files with quality and dimension controls.
Open toolImage Resizer
Resize images using contain, cover or exact dimensions.
Open toolImage Converter
Change JPEG, PNG and WebP images to the format you need.
Open toolImage OCR
Extract English text from JPEG, PNG and WebP images privately in your browser.
Open toolPrice Tag Maker
Design a clear custom price tag with simple templates and download it as PNG.
Open toolGIF & animation tools
Create GIFs or extract their individual frames.
PDF tools
Create, combine, split, rotate and reorder PDFs.
Images to PDF
Arrange images and create a single downloadable PDF.
Open toolPDF OCR
Extract reliable English text from scanned or selectable PDF pages privately in your browser.
Open toolMerge PDF
Combine several PDF files in your chosen order.
Open toolSplit PDF
Extract ranges, individual pages or fixed-size groups.
Open toolRotate PDF
Rotate selected pages left, right or 180 degrees.
Open toolReorder PDF
Rearrange PDF pages with keyboard-friendly controls.
Open toolRemove PDF Pages
Select unwanted pages and create a PDF containing the rest.
Open toolExtract PDF Pages
Copy selected pages into one PDF or separate PDF files.
Open toolAdd PDF Page Numbers
Number selected pages with configurable placement and styling.
Open toolWatermark PDF
Apply a text or image watermark to selected PDF pages.
Open toolPDF to JPG or PNG
Render selected PDF pages as JPG or PNG images.
Open toolCrop PDF
Adjust the visible crop area of selected PDF pages.
Open toolBasic PDF Editor
Add text, images, shapes, drawings and highlights to a PDF.
Open toolFill PDF Forms
Complete supported fields in an existing interactive PDF form.
Open toolAdd a Visual Signature
Draw, type or upload a visual electronic signature.
Open toolView and Edit PDF Metadata
Review and update supported PDF document metadata.
Open toolAudio Tools
Edit, convert, improve, record, and manage audio files directly from your device.
Audio Trimmer
Select and export a precise section of an audio file.
Open toolAudio Splitter
Split audio at one or more timestamps and download each part.
Open toolAudio Merger
Arrange compatible audio files and join them into one track.
Open toolVolume Changer
Raise, lower or mute audio with a preview before export.
Open toolFade In and Fade Out
Add adjustable fade-in and fade-out effects to audio.
Open toolAudio Reverser
Reverse a short audio file entirely on your device.
Open toolMono and Stereo Converter
Mix stereo audio to mono or duplicate mono into stereo.
Open toolAudio Waveform Generator
Create and download a PNG waveform without uploading audio.
Open toolAudio Metadata Viewer
Inspect duration, format, sample rate and channel information.
Open toolVoice Recorder
Record, pause, preview and download audio in your browser.
Open toolAudio Normalizer
Adjust peak volume locally for more consistent playback.
Open toolVideo Tools
Trim, convert, resize, edit, and manage videos with simple browser-based tools.
Video to GIF
Create an animated GIF from an MP4, M4V, MOV or WebM clip.
Open toolVideo to Audio
Extract audio from MP4, M4V, MOV or WebM and save it as MP3 or WAV.
Open toolVideo Metadata Viewer
Inspect a video's duration, dimensions and available format details.
Open toolVideo Trimmer
Select a short section and export it locally in a browser-supported format.
Open toolMute Video
Create a silent copy of a video without sending it to a server.
Open toolVideo Thumbnail Generator
Choose a video frame and download it as PNG, JPEG or WebP.
Open toolVideo Frame Extractor
Extract a controlled number of frames at regular intervals.
Open toolSubtitle Converter
Validate and convert SRT and WebVTT subtitle files locally.
Open toolScreen Recorder
Record a screen or window after you grant browser permission.
Open toolWebcam Recorder
Record camera and optional microphone input with a local preview.
Open toolText tools
Organize and transform plain text in your browser.
QR & barcode tools
Create scan-ready QR codes and standard barcodes.
Developer Tools
Format, encode, generate and verify developer-friendly values.
JSON Formatter
Validate, format or minify JSON with clear syntax errors.
Open toolXML Formatter
Validate, indent or minify XML directly in your browser.
Open toolBase64 Encoder & Decoder
Encode Unicode text or decode standard, unpadded and URL-safe Base64.
Open toolURL Encoder & Decoder
Encode or decode URL components without sending them anywhere.
Open toolUUID Generator
Generate one or more cryptographically random UUID v4 values.
Open toolHash & Checksum Generator
Create SHA-256, SHA-384, SHA-512 or CRC32 values from text.
Open toolPassword Generator
Create strong, customizable passwords with cryptographically secure randomness.
Open toolCalculators
Calculate dates, percentages, conversions, prices and payments.
Standard Calculator
Handle everyday arithmetic, percentages, parentheses and common mathematical operations.
Open toolPercentage Calculator
Calculate percentages, ratios and percentage changes.
Open toolAge Calculator
Find an exact age in years, months and days.
Open toolDate Difference Calculator
Count the days and complete weeks between two dates.
Open toolTime Duration Calculator
Measure elapsed time and subtract an optional break.
Open toolUnit Converter
Convert common length, mass, temperature and volume units.
Open toolDiscount Calculator
Calculate savings, optional sales tax and the final discounted price.
Open toolMalaysia Bank Loan Rate & Loan Calculator
Estimate a home budget from salary, compare payment-compatible Malaysian bank rates, and calculate repayments.
Open tool