Coding & Development
Owl Util
2h agoOwl Util offers a collection of 26 free, instant‑load web tools for developers, designers, and general users. Tools include a SQL editor, JSON formatter, CSV editor, QR code generator, token counter, ASCII‑art generator, color‑blind test, random picker, video trimmer, subtitle editor, AI upscaler and many others, all usable without signup or installation.
SQL MasterJSON FormatterCSV EditorToken CounterQR GeneratorText to PDFASCII ArtColor Blind TestRandom PickerBrain Tug GameText RepeaterIllusion LabStoic QuotesDate Difference CalculatorVideo Watermark Remover (VMR Editor)DSA PracticeVideo TrimJigsaw PuzzlesRandom Animal GeneratorAI Video & Image UpscalerColor ScreenSubtitle EditorWord Counter
Key Capabilities
01
SQL Master
Write, test, and format SQL queries directly in the browser with no setup required.
02
JSON Formatter
Beautify, minify, and validate JSON data instantly with tree visualization.
03
CSV Editor
Edit, filter, sort, and transform CSV data using a spreadsheet‑like interface.
04
Token Counter
Count tokens for LLM prompts and responses, supporting models like GPT and Claude.
05
QR Generator
Create QR codes for URLs, text, Wi‑Fi credentials, or contact cards in seconds.
06
Text to PDF
Convert plain text or markdown documents to PDF instantly.
07
ASCII Art
Generate creative ASCII art from text or images for easy sharing.
08
Color Blind Test
Take an interactive Ishihara‑style color vision assessment in the browser.
09
Random Picker
Pick a random name or item from a custom list using a spinning‑wheel interface.
10
Brain Tug Game
Test mental‑math skills against a computer opponent in a fast‑paced tug‑of‑war game.
11
Text Repeater
Repeat any text multiple times instantly, useful for testing or fun.
12
Illusion Lab
Create and explore optical illusions and visual tricks.
13
Stoic Quotes
Display daily wisdom and quotes from ancient Stoic philosophers.
14
Date Difference Calculator
Calculate differences between two dates, including total and business days.
15
Video Watermark Remover (VMR Editor)
Remove watermarks from videos directly in the browser.
16
DSA Practice
Learn and practice data structures and algorithms online.
17
Video Trim
Trim and cut video files locally in the browser, ensuring privacy.
18
Jigsaw Puzzles
Play relaxing jigsaw puzzles with beautiful images in the browser.
19
Random Animal Generator
Discover a random animal instantly.
20
AI Video & Image Upscaler
Upscale videos and images using AI techniques.
21
Color Screen
Display a full‑screen solid color for monitor testing or ambient lighting.
22
Subtitle Editor
Generate, edit, style, and export video subtitles privately.
23
Word Counter
Count words, analyze keyword density, and estimate reading time.
Use Cases
Quick Data FormattingFormat, validate, and visualize JSON or CSV data without installing software.Developers and data analysts
Rapid PrototypingWrite and test SQL queries instantly to prototype database interactions.Developers and database administrators
Content CreationGenerate QR codes, ASCII art, or convert text to PDF for marketing and documentation purposes.Designers and content creators
AI Prompt EngineeringCount tokens for prompts to optimize usage of language models like GPT and Claude.AI researchers and prompt engineers
Video Editing on the FlyTrim videos, remove watermarks, or upscale media without uploading to external services, preserving privacy.Video editors and social media managers
Educational PracticePractice data structures and algorithms or test mental‑math skills through interactive games and puzzles.Students and educators
Update History
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