Built by Shishwa Technologies
Free AI Tools & Online Utilities
Fast • Private • No Sign-up Required | Built by Shishwa Technologies
Featured tools
Start with the essentials
QR Code Generator
Create scannable QR codes for links, text, WiFi details, contact cards, and short messages.
Password Generator & Strength Checker
Generate secure random passwords and test password strength with simple feedback.
Mortgage/EMI Calculator
Estimate monthly EMI, total interest, processing fee, and total repayment in your chosen currency.
Image Compressor & Resizer
Resize, compress, preview, and download optimized images directly from your browser.
AI Background Remover
Remove image backgrounds locally and download a transparent PNG with before/after preview.
AI Image Upscaler
Upscale and enhance images locally with 2x/4x scaling, sharpening, noise reduction, contrast, and before/after preview.
Categories
Find the right utility fast
AI Tools
Prompt helpers and smart utilities for faster creative and technical work.
10 tools
Finance Calculators
Useful money calculators for planning loans, conversions, and everyday decisions.
3 tools
Image & PDF Tools
Resize, compress, remove backgrounds, merge PDFs, and optimize common files in your browser.
4 tools
Text & Productivity
Clean text, count words, calculate dates, and finish small tasks quickly.
3 tools
Generators
Create QR codes, passwords, business names, random picks, and other ready-to-use outputs.
7 tools
Health & Fitness
Simple personal health calculators with clear, privacy-first results.
2 tools
Developer Tools
Local JSON, regex, SQL, Base64, URL, timestamp, hash, and text-diff utilities for everyday coding.
9 tools
Why ShishwaLab
Calm tools that respect your time
ShishwaLab focuses on fast client-side utilities with clean layouts, readable results, and clear room for non-intrusive ads.
100% Free
Use core tools without signup or payment walls.
Works Offline
Many tools run fully in your browser after load.
Privacy First
Inputs stay client-side wherever possible.
No Login Required
Open a tool and finish the task.
Regularly Updated
Built to expand with useful tools and guides.
Mobile Friendly
Layouts are designed for phones, tablets, and desktops.
Popular this week
Frequently used tools
QR Code Generator
Create scannable QR codes for links, text, WiFi details, contact cards, and short messages.
Password Generator & Strength Checker
Generate secure random passwords and test password strength with simple feedback.
Mortgage/EMI Calculator
Estimate monthly EMI, total interest, processing fee, and total repayment in your chosen currency.
Image Compressor & Resizer
Resize, compress, preview, and download optimized images directly from your browser.
AI Background Remover
Remove image backgrounds locally and download a transparent PNG with before/after preview.
AI Image Upscaler
Upscale and enhance images locally with 2x/4x scaling, sharpening, noise reduction, contrast, and before/after preview.
Text Tools
Clean up text, count words and characters, and remove extra spaces. Use the dedicated Case Converter for camelCase, snake_case, and more.
AI Prompt Studio
Build, enhance, and chain ChatGPT-ready prompts with a free AI prompt generator, prompt enhancer, template library, and local save/share tools.
AI Content Detector
AI content detector that estimates AI-likelihood from sentence variation, vocabulary diversity, word repetition, transitions, passive voice, paragraph structure, complexity, and punctuation—with confidence and clear limits.
AI Text Humanizer
Deterministic AI text humanizer and rewriter that improves naturalness with Natural, Professional, Conversational, Academic, Concise, and Creative modes—showing original vs improved text, counts, and readability.
AI Paraphraser
Free paraphrasing tool that rewrites sentences with a controlled thesaurus and deterministic restructuring. Compare word counts, readability, and highlighted changes—without random synonym chaos.
AI Resume Analyzer
Free ATS-style resume analyzer and keyword checker. Paste a resume or upload TXT, optionally add a job description, then get heuristic scores, section checks, and rewrite suggestions—all in your browser.
AI Text Summarizer
Free extractive AI text summarizer and PDF summarizer. Paste text, upload TXT/PDF, choose Brief, Standard, Detailed, Bullet Points, or Key Takeaways, then get a summary, key points, important terms, and compression stats—all in your browser.
AI Email Writer
Free professional email generator with deterministic business email templates. Choose purpose, tone, and urgency, then get subject, greeting, body, and closing—all in your browser.
JSON Formatter
Format and minify JSON locally with indent controls, validation feedback, copy, and download.
Regex Tester
Test regular expressions with flags, match highlighting, capture groups, and optional replace—all locally.
SQL Formatter
Format SQL queries locally with keyword uppercase options, copy, and download.
Base64 Encoder / Decoder
Encode and decode Base64 with UTF-8 support and optional URL-safe alphabet—fully local.
Timestamp Converter
Convert Unix timestamps and date-times locally with ISO, UTC, local, and millisecond views.
Hash Generator
Generate MD5 and SHA family hashes locally from text with copy and download helpers.
Text Diff Checker
Compare two texts with a local line diff, addition/deletion counts, copy, and download.
AI Name Generator
Generate startup, brand, YouTube, product, pet, baby, and fantasy name ideas with style, length, and keyword filters.
Hashtag & Caption Toolkit
Generate hashtag groups plus Instagram, LinkedIn, and general social captions from topic, audience, tone, and goal—deterministic templates, local save, no paid AI API.
Speech to Text
Convert speech to text with live browser transcription. Start, pause, stop, clear, copy, or download TXT—voice typing powered by the Web Speech API where supported.
Text to Speech
Convert text to speech with a free online text reader. Choose voice and language, adjust speed, pitch, and volume, then Play, Pause, Resume, or Stop—powered by browser SpeechSynthesis.
Chart Generator
Create charts from CSV, TSV, JSON, or pasted tables. Auto-detect columns, pick bar/line/pie/doughnut/area/scatter, get deterministic insights, and download PNG or SVG.
Text Case Converter
Convert text to uppercase, lowercase, title, sentence, camel, snake, and kebab case instantly in your browser.
UUID Generator
Generate UUID v4 (GUID) identifiers with single or bulk creation, copy, and download — all in your browser.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences, or words, optionally with an HTML heading, then copy or download.
Percentage Calculator
Calculate a percentage of a number, find what percent a value is of another, and work out percentage increase or decrease.
BMR & Daily Calorie (TDEE) Calculator
Estimate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) for maintenance, loss, or gain.
Guides
From the ShishwaLab blog
2026-08-31
ATS Resume Checks: Heuristics, Limits, and Better Editing Habits
An honest guide to ATS-style resume analysis, keyword matching, and practical editing—without fake guarantees.
Read guide
2026-08-30
Format and Validate JSON Locally Without Uploading Secrets
A developer-focused guide to local JSON formatting and validation with practical error patterns and privacy tips.
Read guide
2026-08-30
UUID v4 Guide for Developers: Uniqueness, Format, and Local Generation
A practical UUID/GUID v4 guide covering collision odds, formatting, and private bulk generation.
Read guide