✨ 92+ Free Tools • Local-First • No Required Signup

Free privacy-first tools for developers and productivity workflows

Format JSON, convert files, generate QR codes, calculate costs, clean text, and automate everyday work.

Most tools run directly in your browser. No account required, offline where supported, fast, and local-first.

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Stored on this device and available offline.

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Open any tool and it will appear here automatically. No account is required.

Favorite tools

Your private shortcut shelf, saved locally first.

Star the tools you use most
Use the star on a tool card or page. Favorites persist after refresh and can sync only if you opt in.

Popular tools

High-intent utilities selected from the central registry.

Word Counter
Count words, chars, reading time.
Writing & Text
Secure Key Generator
API keys, JWT secrets, UUIDs, AES, Django keys.
Security
Hash Generator
Binary-safe MD5 and SHA file or text checksums.
Developer
UUID Generator
Generate and validate UUID v4 and time-ordered v7.
Developer
SIP Calculator
Project monthly SIP investment growth and step-up.
Finance & Productivity
JSON Formatter
Format, beautify, minify, validate JSON.
Developer
JSONPath Tester
Query JSON with RFC-standard path selectors.
Developer
Image Format Converter
Convert and resize JPG, PNG, and WebP images locally.
PDF & Images

Browse by workflow

Find related tools without leaving SimpleTaskTools.

Developer Tools
Daily JSON, code, conversion, and debugging utilities.
JSON Tools
Format, convert, validate, and model JSON safely in your browser.
API Tools
Build, inspect, and automate API workflows.
SEO Tools
Generate metadata, structured data, sitemaps, and campaign URLs.
AI Tools
Plan prompts, tokens, and model costs without sending content to an AI provider.
PDF Tools
Private PDF conversion, extraction, and document utilities.
Image Tools
Compress, convert, inspect, and generate images locally.
Finance Tools
Practical calculators for pricing, tax, invoices, and recurring costs.
Network Tools
DNS, SSL, IP, headers, and subnet diagnostics.
DevOps Tools
Scheduling, configuration, and deployment helpers.
Text Tools
Clean, count, compare, and transform text.
Creator Tools
Create social, brand, code, and campaign assets.
Freelancer Tools
Invoices, rates, productivity, and client workflow tools.
Productivity Tools
Manage tasks, time, finances, and everyday work.

All Tools

92 tools in 10 categories — click any category to expand

Why SimpleTaskTools?

Privacy First

Most tools process locally, and saved work stays on-device unless you explicitly enable selected sync.

Lightning Fast

No network latency. Instant results as you type.

Works Offline

Install as PWA. Use anywhere, even without internet.

Need API Access?
Automate SimpleTaskTools in your code. Format JSON, convert PDFs, and more via REST API.

Free Online Tools for Developers & Professionals

Developer Tools

Powerful tools for software developers. Our JSON formatter beautifies and validates JSON instantly. The SQL formatter prettifies complex queries. Generate MD5, SHA-256 hashes, create UUIDs, test regex patterns, and convert between formats.

JSON Formatter
SQL Formatter
Hash Generator
Regex Tester

PDF & Image Tools

Convert PDF to images or images to PDF without uploading files. Extract text from images with OCR. Compress images, remove EXIF metadata, generate QR codes, and create favicons - all processed locally in your browser.

PDF to Image
Image OCR
Image Compressor
QR Generator

Writing & Text Tools

Count words, characters, and estimate reading time with our word counter. Generate Lorem Ipsum placeholder text. Clean and format text, compare documents with text diff, and make your writing more professional.

Word Counter
Lorem Ipsum
Text Diff
Text Cleaner

Finance & Productivity

Calculate loan EMI for home, auto, student, and personal loans with amortization schedules. Convert VCF contacts to Excel. Track meeting costs, manage subscriptions, and estimate task durations for better productivity.

Loan Calculator
VCF to Excel
Meeting Cost
Password Generator

🔒 Your Privacy is Our Priority

Most utilities process inputs directly in your browser, and every tool explains its processing mode. Saved work stays on this device by default. Accounts are optional, and only the data types you explicitly allow are synced. Local-capable tools can work offline as part of the Progressive Web App (PWA).

Popular Tools:

JSON Formatter Online•SQL Beautifier•MD5 Hash Generator•EMI Calculator•Word Counter•PDF to PNG•Image to Text OCR•Regex Tester Online•UUID Generator•Base64 Encoder

Frequently Asked Questions

Everything you wanted to know about SimpleTaskTools.