Every tool · 100% private · offline
All Tools
PDF, compare, diff, markdown, data, calculators, time, and images—one searchable catalog.
106 tools
PDF Diff Checker
Compare two PDFs side-by-side to find exact text differences, additions, and deletions instantly.
Extract Text
Parse and copy all raw text contents from any PDF document for use in other applications.
PDF OCR
Read text from scanned image PDFs with on-device OCR - nothing leaves your browser.
PDF to Markdown
Convert PDF documents into structured, formatted Markdown (.md) automatically.
Word to PDF
Turn a Word (.docx) document into a clean, shareable PDF. Layout is simplified to flowing text.
PDF to Word
Turn text PDFs into editable Word (.docx) files. Layout is simplified to paragraphs.
Markdown to PDF
Write or paste Markdown and instantly generate a beautifully formatted PDF file.
HTML to PDF
Render HTML files or raw valid web code snippets into clean PDF documents.
PDF to Images
Convert PDF pages to PNG or quality-controlled JPG images, with multi-page downloads packed into a ZIP.
Images to PDF
Select multiple image files and combine them sequentially into a single cohesive PDF document.
Merge PDF
Combine multiple PDF files into one perfectly organized document in the exact order you need.
Split PDF
Extract specific pages from a large PDF or split the document into multiple separate files.
Organize Pages
Visually reorder, individually rotate, or permanently delete specific pages within your PDF.
Crop PDF
Visually trim page margins while preserving selectable text, links, vector graphics, and original quality.
Compress PDF
Reduce PDF file size with selectable image quality or keep text and links with lighter optimization.
Repair PDF
Upload a corrupt, damaged, or incomplete PDF file and we will attempt to fix and recover it locally.
Sign Document
Draw or upload a signature and place it visibly on a PDF entirely offline.
Rotate PDF
Rotate individual pages or entire documents to the correct 90, 180, or 270 degree orientation.
Add Watermark
Stamp your documents with custom text watermarks for visual security and branding.
Remove Watermark
Strip watermark and stamp overlays from a PDF. Works on overlay watermarks, not ones printed into the page.
Add Page Numbers
Stamp sequential page numbers to the bottom center of your document automatically.
Edit Metadata
View and modify hidden document properties like Author, Title, Subject, and Keywords.
Flatten PDF Forms
Lock interactive PDF form fields into static page content so their current values cannot be edited.
Encrypt PDF
Protect PDFs with modern AES-256 encryption, plus an optional legacy mode for older readers.
Decrypt PDF
Remove AES-256 or legacy password protection while preserving the document's original features.
Document Compare
The easy way to compare two contracts, policies, or any documents. Plain-language changes - no technical setup.
Text Diff
Paste any two texts and compare instantly with word and character-level precision. Drag & drop files, share via URL.
JSON Diff
Semantic JSON comparison - order-independent, type-aware, with full key-path reporting for nested objects.
Image Diff
Five modes: side-by-side, fade overlay, slider reveal, pixel highlight, and subtract. Catches single-pixel changes.
YAML Diff
Structural YAML comparison - ignores indentation and quoting. Built for Kubernetes manifests and CI configs.
List Diff
Compare two lists with 5 set operations at once - only-in-A, only-in-B, union, intersection, symmetric difference.
Folder Diff
Compare entire directories locally in your browser. Highlights added, removed, and changed files across trees.
XML Diff
Semantic tree comparison for XML documents - ignores whitespace and attribute ordering.
HTML Diff
Compare HTML code with sanitized side-by-side rendered previews and a source-code diff.
Word Diff
Compare two Word documents and see exactly what text was added, removed, or changed. Optimized for prose.
Markdown Diff
Compare two Markdown documents with both raw source diff and side-by-side rendered preview.
Table Generator
Build Markdown tables with a grid editor, alignment controls, and CSV import.
Contents List Generator
Create linked contents from Markdown headings and insert or copy the result.
Markdown Checker
Find unclear structure, missing image descriptions, bare links, and formatting issues.
Mermaid Diagram Maker
Write Mermaid syntax, preview diagrams, export images, or continue editing on the whiteboard.
Word to Markdown
Upload a .docx file and convert the full document to structured Markdown.
Markdown to Word
Convert Markdown to a professionally formatted Word document (.docx) instantly.
HTML to Markdown
Paste HTML or a web snippet and convert it to clean, readable Markdown instantly.
Markdown to HTML
Convert Markdown to clean, semantic HTML for web publishing.
Text to Markdown
Paste plain text and intelligently auto-format it as Markdown with structure detection.
Markdown to Text
Strip all formatting from Markdown and export clean, plain text for any use.
Markdown Preview
Live Markdown editor with side-by-side rendered HTML preview and one-click export.
JSON Formatter
Pretty-print, minify, and validate JSON entirely in your browser.
JSON ↔ YAML
Convert JSON to YAML and YAML to JSON offline - great for configs.
CSV ↔ JSON
Turn CSV rows into JSON objects (or back) with quoted-field support.
Base64 Encode / Decode
Encode text to Base64 or decode it back - private and offline.
URL Encode / Decode
Percent-encode and decode URL components without a server.
JWT Decoder
Decode JWT header and payload locally. Signature is never verified here.
Hash Generator
Generate SHA-256 and SHA-1 digests for text via WebCrypto - input never leaves your device.
UUID Generator
Generate random UUIDs (v4) in bulk for IDs and test data.
Unix Timestamp
Convert between Unix timestamps and human-readable dates.
Number Base Converter
Convert binary, octal, decimal, and hex live - with hex literals and fixed-width views.
Hex / Bytes Converter
Live convert hex, UTF-8 text, decimal, binary, and Base64 - type in any field.
Color Converter
Live convert hex, RGB, HSL, and HSV - type in any field.
QR Code Generator
Create QR codes for URLs, Wi-Fi, email, phone, and text. PNG + SVG download.
Password Generator
Strong random passwords via Web Crypto - length, charsets, no lookalikes.
Regex Tester
Test regular expressions, inspect capture groups, and preview replacements safely.
Cron Parser
Explain five-field cron schedules and preview their next run times.
JWT Secret Generator
Generate high-entropy HMAC signing secrets in Base64URL or hexadecimal.
Random Picker
Pick one or more items fairly from a pasted list using browser crypto.
Lorem Ipsum Generator
Generate placeholder words, sentences, or paragraphs for layouts.
Clock
Open the unified Time workspace on a clean digital or analog clock.
Countdown Timer
Open the Time workspace on a countdown with selectable sounds and flash colours.
Stopwatch
Open the Time workspace to measure elapsed time, laps, and splits.
Pomodoro Timer
Open the Time workspace for themed focus sessions and selectable alerts.
Multiple Timers
Run several named countdown timers independently in one workspace.
Alarm Clock
Set one-off or repeating browser alarms with selectable alerts.
Event Countdown
Count days, hours, minutes, and seconds to important events.
Interval Timer
Alternate custom work and rest rounds for training, study, or rehearsals.
World Clock
Compare time zones and plan daylight-saving-aware meetings.
Date Calculator
Add or subtract dates, calculate age, and count calendar or business days.
Percentage Calculator
Find a percentage, compare a part with a total, work out an increase or decrease, or recover the original value.
Percentage Increase
Measure growth from an original value to a new value.
Percentage Decrease
Measure a reduction and see the absolute amount lost.
Discount Calculator
Calculate savings, sale price, optional tax, and final price.
Tip Calculator
Work out a tip and the final bill, and optionally split it across any number of people.
Tip Split Calculator
Split a bill and tip equally across any number of people.
Loan Calculator
Estimate monthly payments, total repayment, and interest.
Compound Interest
Project savings growth with compounding and monthly contributions.
BMI Calculator
Estimate adult BMI using metric or imperial measurements.
Age Calculator
Calculate precise age, total days lived, and the next birthday.
Sleep Calculator
Plan bed or wake times around 90-minute sleep cycles.
Time Calculator
Add or subtract durations and calculate elapsed clock time.
Days Between Dates
Count calendar, weekday, and weekend days between two dates.
Shoe Size Converter
Estimate US, UK, EU, JP, and foot-length equivalents.
Unit Converter
Convert 16 measurement types live — length, weight, temperature, volume, pressure, energy, power, data, km to miles, and more.
KM to Miles Converter
Convert kilometres and miles in either direction instantly — powered by the Unit Converter.
Case Converter
Convert text between UPPER, lower, Title, camelCase, snake_case, and more.
Slug Generator
Turn titles into clean URL slugs for links, filenames, and IDs.
Sort & Deduplicate Lines
Alphabetise or reorder lines and remove duplicate or blank rows.
Text Cleaner
Strip invisible characters, straighten smart quotes, and fix spacing.
Find & Replace
Replace words or regular-expression patterns across a block of text.
Word & Character Counter
Count words, characters, sentences, paragraphs, lines, and reading time.
AI Token Counter
Estimate prompt tokens, context use, reading time, and API cost.
Private Whiteboard
Sketch diagrams, annotate ideas, and save editable drawings without an account.
Image Converter
Convert PNG, JPG, WebP, GIF, BMP, SVG, AVIF, and HEIC images in your browser. Batch + ZIP.
Resize Image
Make the whole image larger or smaller by pixels or percentage without cutting anything away.
Crop Image
Trim an image to a selected region or a fixed aspect ratio.
Compress Image
Shrink JPG, PNG, or WebP file size with a live quality preview.
Retouch & Cleanup
Brush over blemishes or sensitive details with clone, blur, or pixelate tools.
EXIF Viewer & Stripper
See the hidden metadata in your photos — location, device, timestamps — and remove it.