JustBloc

Add or remove GST from an amount and see the tax component instantly.

Estimate monthly mortgage payments, total repayment, and interest cost.

Calculate age in years, months, and days from a date of birth.

Estimate daily calories from body details and activity level.

Estimate crypto profit or loss from buy and sell prices.

Estimate take-home pay after simple tax deductions.

Count words, characters, sentences, and paragraphs in any text.

Convert text between sentence, title, upper, lower, camel, and kebab case.

Remove repeated lines while preserving the first occurrence order.

Sort lines alphabetically or reverse alphabetically.

Preview Markdown text in a clean formatted view.

Generate strong passwords with flexible length and character options.

Open TXT, Markdown, CSV, log, JSON, XML, and other text files for reading, copying, and downloading.

Open an EPUB ebook, browse chapters, view metadata, and read extracted ebook text in a clean online view.

Convert EPUB ebooks to plain text, extract readable chapters, and download the result as a TXT file.

Convert plain text to a simple EPUB ebook with title, author, paragraph formatting, and instant download.

Format, validate, and compact JSON for quick review and cleanup.

Encode text to Base64 or decode Base64 back to readable text.

Test regular expressions against sample text.

Convert Unix timestamps to readable dates and dates back to timestamps.

Pick colors and convert between common color formats.

Minify CSS snippets for quick copy and paste use.

Create a customizable QR code from text, links, contact details, or any short content.

Upload a QR code image and extract the encoded text or link.

Edit HTML, CSS, and JavaScript with an instant sandboxed preview.

Run JavaScript snippets in a sandbox and capture console output.

Run SQL against a temporary SQLite database and view every result set.

Compress one or many JPEG, PNG, WebP, and AVIF images with quality and size controls.

Resize images by maximum width and height, then export the optimized result.

Convert images between JPEG, PNG, WebP, and AVIF formats.

Crop images by pixel coordinates and export the cropped file.

Rotate images by right angles, flip horizontally or vertically, and download the result.

Preview embedded image metadata, then remove most of it by re-encoding the image.

Add or edit text metadata in PNG and JPEG images.

Load an image, click a pixel, and copy its HEX and RGB color values.

Upload multiple PDF files, reorder them, and merge everything into one downloadable PDF.

Extract selected PDF pages using ranges like 1-3, 5, 8-10 and download a new PDF.

Optimize PDF structure and reduce file size where possible for easier uploads and sharing.

Convert JPG, PNG, and WebP images into a PDF with reorder, page size, orientation, and margin options.

Render PDF pages as PNG or JPEG images and download single pages or a ZIP of all pages.

Extract selectable text from PDF pages, preview it, copy it, and download a plain TXT file.

Paste text, choose title, font size, and margins, then download a printable PDF document.

Paste Markdown, preview readable content, and export it as a simple printable PDF.

Paste HTML, keep visual styles or export text-only content, and create a PDF.

View PDF title, author, subject, creator, producer, page count, file size, and dates.

Preview PDF page thumbnails, move pages up or down, delete unwanted pages, and download the rebuilt PDF.

Add page numbers to a PDF with position, prefix, and starting number options.

Add a text watermark to every PDF page with opacity and rotation controls.

Rotate all PDF pages or selected page ranges by 90, 180, or 270 degrees.

Click on a PDF preview to place text, fillable input fields, or a drawn signature, then drag items into position and download the edited PDF.

Convert text-based subtitle files to SubRip SRT. Supports SRT, VTT, WebVTT, ASS, SSA, SMI, MicroDVD SUB, MPL2 SUB, and TXT with subtitle timings.

Convert text-based subtitle files to WebVTT. Supports SRT, VTT, WebVTT, ASS, SSA, SMI, MicroDVD SUB, MPL2 SUB, and TXT with subtitle timings.

Shift every subtitle cue forward or backward to resync captions with video.

Apply different timing shifts to specific time ranges inside subtitle files.

Remove numbering issues, markup, SDH notes, and extra spacing from SRT subtitles.

Auto-detect source encodings and convert text or subtitle files to UTF-8 downloads.

Edit subtitle cue text and timings, then export SRT or WebVTT.

Merge subtitles one-to-one, one-to-many, or many pairs with multiple merge modes.

Extract readable transcript text from subtitle files, including batch exports.

Convert subtitle and plain text files to printable PDF documents.

Wrap WebVTT cue text with a color class for styled subtitle tracks.

Add or remove SRT position markers for top, middle, or bottom subtitle placement.

Generate title, description, canonical, and Open Graph meta tags.

Build a simple robots.txt file with sitemap and crawl rules.

Preview how link title, description, and image values may appear.

Check repeated words and phrase density from page copy.

Scan market presets and filter stocks by price, volume, valuation, dividend yield, analyst rating, exchange, sector, and 52-week range position.

Search symbols and view stock charts with candlesticks, volume, intraday intervals, indicators, events, and drawing tools.

Generate short profile bio ideas from a niche, tone, and call to action.

Generate title ideas for videos from a topic and angle.

Create hashtag sets from a topic and platform style.

Generate username ideas from keywords and preferred style.