All tools
The full list is rendered from tool data through the shared template.
Markdown -> MindMap
Turn Markdown headings into a simple browser-rendered mind map tree.
Markdown -> HTML
Convert Markdown into an HTML preview and source code directly in the browser.
Markdown -> PDF
Turn Markdown into a print-ready document and open the browser save-as-PDF flow.
Markdown live preview
Type Markdown or load a file and preview the rendered document instantly in the browser.
Mermaid diagram generator
Render Mermaid syntax into an SVG diagram directly in the browser.
PlantUML renderer
Encode PlantUML source in the browser and render an SVG preview only when requested.
JSON Viewer
Validate JSON and inspect a formatted source and navigable structure.
YAML Viewer
Validate YAML and inspect the parsed structure plus JSON output.
CSV Viewer
Preview CSV files as a table and inspect row and column counts.
CSV → JSON
Validate CSV data and convert it into a JSON array.
JSON → CSV
Convert JSON arrays or objects into escaped CSV.
Text Diff
Compare two text blocks and highlight added, removed, and changed lines.
Code Diff
Compare two code snippets with a whitespace-normalization option.
Document Summary Viewer
Extract headings, key sentences, keywords, and document stats in the browser.
HTML Preview
Render HTML in a sandboxed preview and inspect the document structure.
TXT to PDF
Preview pasted text or a text file as a print-ready PDF document.
Markdown Wiki Viewer
Render Markdown as a wiki-style article with outline navigation.
RTF Viewer
Extract readable text from RTF source in the browser.
Paragraph Formatter
Normalize loose lines and spacing into readable paragraphs.
Case Converter
Convert text to upper, lower, title, or sentence case.
Character Counter
Count characters, words, lines, sentences, and length without spaces.
Text Sorter
Sort line-based text ascending, descending, or with duplicates removed.
Line Break Cleaner
Clean unnecessary line breaks and blank lines around sentences.
Base64 Text Encoder
Encode UTF-8 text into a Base64 string.
Base64 Text Decoder
Decode a Base64 string into UTF-8 text.
URL Encoder
Percent-encode URL query values or path fragments.
URL Decoder
Decode percent-encoded URL text into a readable value.
Slug Generator
Convert title text into a search-friendly URL slug.
Lorem Ipsum Generator
Generate placeholder copy from selected paragraph and sentence counts.
Memo Pad
A simple local memo pad saved in browser localStorage.
Font Comparer
Compare the same text with two fonts and one size setting.
OCR Result Viewer
Paste or upload OCR-extracted text to inspect lines, blocks, and suspicious characters.
Clipboard Tool
Clean clipboard text and save pasted or clipboard images as PNG/JPG files.
JPG to PNG
Convert JPG images to PNG.
PNG to JPG
Convert PNG images to JPG with background color and quality options.
WEBP Converter
Export JPG, PNG, or WEBP images as quality-controlled WEBP files.
Image Resize
Resize an image to a chosen width and height in the browser.
Image Compress
Reduce image file size by changing dimensions and JPG quality.
EXIF Viewer
Read JPEG EXIF metadata in the browser and display it as a table.
EXIF Remover
Re-export images through browser canvas to remove file metadata such as EXIF.
Image Crop
Crop an image to a selected area and export it as PNG.
Watermark Add
Compose a text watermark over an image in the browser.
Sprite Sheet Generator
Combine multiple images into one downloadable sprite sheet PNG.
Color Palette Extractor
Sample frequent colors from an image and build a palette.
Image Rotate
Rotate an image in 90-degree steps and export it as PNG.
Image Flip
Flip an image horizontally or vertically.
Background Removal Mockup
A color-key mockup that makes pixels similar to the selected color transparent.
Image Filter
Apply browser canvas filters to an image.
Image Border
Add a custom color and width border around an image.
Canvas Extend
Extend the canvas around an image with a colored margin.
Image Format Info
Inspect the actual image format, dimensions, signature, alpha, and animation flags.
Image Compare
Compare two images over the same area and visualize pixel differences.
Placeholder Image Generator
Generate a placeholder PNG with chosen dimensions and colors.
Profile Image Maker
Create a circular or square profile PNG from an uploaded image.
Image Grayscale
Convert an image to grayscale PNG.
Image Brightness
Adjust image brightness and export a PNG.
Image Contrast
Adjust image contrast and export a PNG.
Image Meta Tags
Generate HTML image meta tag drafts from uploaded image information.
ICO Converter
Convert an image into a 256px ICO file.
SVG to PNG
Render SVG markup or an SVG file to a PNG canvas.
PNG to SVG Viewer
Embed a PNG in an SVG image tag for markup and preview inspection. This is not automatic vector tracing.
Regex Tester
Run a regular expression against test text and inspect matches and groups.
Cron Generator
Combine minute, hour, day, month, and weekday fields into a cron expression.
JSON Formatter
Validate JSON and format it for reading or minify it into one line.
SQL Formatter
Apply browser-side keyword line breaks and indentation to SQL.
Timestamp Converter
Convert Unix timestamps, milliseconds, and ISO dates to local time and UTC.
UUID Generator
Generate UUID v4 values with the browser crypto API.
JWT Decoder
Decode JWT header and payload in the browser. Signatures are not verified.
Password Generator
Generate random passwords with the browser crypto API.
HTML Formatter
A browser MVP formatter that applies line breaks and indentation around HTML tags.
CSS Formatter
Apply line breaks and indentation around CSS blocks, declarations, and semicolons.
JavaScript Formatter
A browser MVP formatter that tidies JavaScript around braces and semicolons.
XML Formatter
Apply line breaks and indentation around XML tags.
Diff Checker
Compare two texts line by line and mark added, removed, and changed lines.
Color Converter
Convert HEX, RGB, and HSL color values.
HTACCESS Generator
Generate common Apache .htaccess rewrite rule drafts.
Meta Tag Generator
Generate HTML meta tag drafts for SEO and sharing.
Robots.txt Generator
Generate robots.txt from User-agent, Allow, Disallow, and Sitemap rules.
Sitemap.xml Builder
Convert a URL list into sitemap.xml format.
HTTP Status Lookup
Look up the meaning and class of HTTP status codes.
Unicode Converter
Convert characters to Unicode code points and escape notation.
Escape / Unescape
Escape or unescape HTML, URL, and JavaScript strings.
Number Base Converter
Convert between decimal, hexadecimal, octal, and binary numbers.
QR Code Generator
Generate real QR code SVG and PNG images from text or URLs.
MP4 to GIF
Export a local browser-playable video segment as a real GIF file.
Video 02
Coming Soon.
Video Compress
Try reducing size by exporting a local video as lower-resolution, lower-frame-rate WebM.
Frame Extractor
Extract a PNG frame from a chosen time in a local video.
Video Cutter
Export only a selected range of a local video as browser-recorded WebM.
Video Rotate
Rotate a local video on a browser canvas and export it as WebM.
Video Mute
Record only the local video picture to a muted WebM file.
Video Thumbnail Generator
Generate a thumbnail image from a selected time in a local video.
Video Resolution Resize
Redraw a local video at a chosen width and export it as WebM.
WEBM Converter
Record any browser-playable local video through a canvas and save it as WebM.
Video 11
Coming Soon.
CSV Chart
Generate a bar chart from label and numeric columns in CSV data.
Excel Viewer
Preview local Excel or CSV files as sheet tables in the browser.
Pivot Viewer
Build a pivot table from selected row, column, and value fields in CSV data.
Timeline Generator
Convert CSV with dates and titles into a chronological timeline SVG.
Gantt Chart Generator
Convert task, start, and end date CSV into a simple Gantt SVG.
Table Filter Builder
Filter a CSV table by search terms and display matching rows.
JSON Chart Preview
Preview a simple chart from label and numeric values in a JSON array.
CSV Statistics Summary
Detect numeric CSV columns and summarize count, sum, average, minimum, and maximum.
Data Sampler
Extract first, last, or evenly spaced sample rows from CSV data.
Column Mapping Tool
Reorder CSV columns into a selected output column sequence.
PDF Merge
Merge multiple PDF files in order.
PDF Split
Save selected page ranges from a PDF into a new PDF.
PDF Compress
Re-save a PDF in the browser and try object-stream optimization plus metadata cleanup.
JPG to PDF
Combine JPG or PNG images into one PDF document.
PDF to JPG
Render a selected PDF page to a browser canvas and save it as a JPG image.
PDF Rotate
Rotate every page in a PDF and save the result as a new PDF.
PDF Page Delete
Remove selected pages and save the remaining pages as a new PDF.
PDF Page Reorder
Build a new PDF from the page order you enter.
PDF Watermark
Add a centered text watermark to every page.
PDF Preview
Open a local PDF file directly inside the browser for quick review.
Network 01
Coming Soon.
Network 02
Coming Soon.
Network 03
Coming Soon.
Network 04
Coming Soon.
HTTP Header Parser
Split pasted HTTP request or response headers into names, values, and security-related fields.
Network 06
Coming Soon.
Network 07
Coming Soon.
IP Address Analyzer
Validate IPv4/IPv6 and CIDR input locally, then classify private, public, and loopback ranges.
User-Agent Parser
Estimate browser, operating system, rendering engine, and mobile state from a User-Agent string.
MP3 to WAV
Save any local audio file this browser can decode as WAV.
WAV to MP3
Encode a local WAV file to MP3 in the browser.
Audio Cutter
Cut a selected range from a local audio file and save it as WAV.
Audio Merge
Append multiple local audio files in order and save the result as WAV.
Volume Adjuster
Adjust a local audio file volume in the browser and save it as WAV.
Audio Format Info
Inspect local audio format, duration, sample rate, channels, and peak levels.
Silence Remover
Remove low-level sections from local audio and save the result as WAV.
Audio Speed Adjuster
Change local audio playback speed in the browser and save it as WAV.
Todo
Add tasks and manage completion state in browser local storage.
Kanban
Manage work cards across todo, doing, and done states locally.
Markdown Wiki
Save a Markdown document locally and preview it with an outline.
Bookmark Manager
Save URLs, titles, and tags in browser local storage, then filter them.
Habit Tracker
Track weekly habit checkmarks in browser local storage.
Memo Board
Save short notes as colored cards in browser local storage.
Project Notes
Save short project notes locally and export them.
Focus Timer
Set focus and break lengths, then run a browser countdown.
Favicon Generator
Generate a simple PNG favicon from text and colors in the browser.
SVG Optimizer
Clean pasted SVG by removing scripts, event attributes, unsafe content, and optional metadata.
CSS Box Shadow Generator
Adjust offset, blur, spread, and color to create CSS box-shadow values.
CSS Gradient Generator
Create linear-gradient CSS from two colors and an angle.
Flexbox Playground
Preview Flexbox layout and CSS by changing alignment options.
CSS Grid Playground
Preview CSS Grid layout by changing columns and gap.
Border Radius Generator
Adjust corner values to create border-radius CSS.
ZIP Creator
Bundle selected local files into a browser-generated ZIP download.
ZIP Extractor
Open a selected ZIP in the browser and download individual files.
Archive 03
Coming Soon.
Archive 04
Coming Soon.
TAR.GZ Viewer
Open a local TAR.GZ in the browser and inspect file names and risky paths.
Compression Compare
Compare raw, gzip, and deflate sizes for text input in the browser.
Archive Preview
Preview ZIP file names, dates, and risky paths before extracting.
File Hash Generator
Calculate SHA hashes for a local file in the browser. Files are not uploaded.
Hash Compare
Normalize whitespace and letter case, then compare two hash values.
SSH Key Generator
Generate an RSA key pair with browser WebCrypto and show an OpenSSH public key plus PKCS#8 private key.
RSA Key Generator
Generate signing-oriented RSA public/private PEM keys with browser WebCrypto.
Checksum Viewer
Parse pasted checksum manifests into filenames, algorithms, and hash values.
Password Strength Checker
Check password length, character mix, and repeated patterns in the browser.
File Content Search
Find matching lines across selected local text files.
Regex File Search
Find lines matching a regular expression across selected local text files.
JSON Key Search
Find JSON keys or paths and show their values.
CSV Column Search
Find matching CSV headers and preview values from those columns.
Document Search Hub
Search text, JSON, and CSV content from one browser-only workspace.
File Split
Split a selected local file into downloadable browser-generated parts.
File Merge
Concatenate selected local files into one browser-generated download.
File Browser
Filter selected local files and preview part of a text file in the browser.
Batch File Rename
Preview new names for selected local files and copy a CSV rename plan.
File Info Viewer
Inspect selected local file names, sizes, types, and modified dates in the browser.
Calendar Viewer
Generate a month calendar and highlight today plus the selected date.
Time Block Scheduler
Split a workday into focused time blocks from start/end time and block length.
Recurring Schedule Generator
Generate recurring schedule dates from a start date, interval, and count.
Deadline Countdown
Calculate remaining days and hours from a deadline date and time.
Nginx Log Viewer
Summarize pasted Nginx access logs by status code and request path in the browser.
Apache Log Viewer
Summarize pasted Apache combined logs by status code, client, and error request.
JSON Log Viewer
Parse JSON Lines or JSON array logs and summarize events by level.
CSV Log Analyzer
Parse CSV logs and summarize level, status, and time columns.