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DOUBLEJL / TOOL DRAWER
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Free browser tools for files, code, images, writing, and everyday calculations. No sign-up; supported tools process files on your device.
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Four real task areas
01
Everyday conversions
Handle time zones, rates, dates, units, and common calculations.
View tools → 02Code & data
Format JSON, test endpoints, transform data, and inspect code.
View tools → 03Files & images
Convert, compress, preview, and download reusable file results.
View tools → 04AI & writing
Prepare, summarize, translate, and review drafts before you use them.
View tools →Frequent starting points
8 popular tools
AI & writing AI Detector
Check text for common AI-style writing signals.
On-device · Usually <1 sec → AI & writing AI HumanizerMake drafts clearer, warmer, and more natural.
On-device · Usually <1 sec → AI & writing AI SummarizerTurn long writing into concise key points.
On-device · Usually <1 sec → Code & data JSON FormatterFormat, validate, and inspect JSON instantly.
On-device · Usually <1 sec → Everyday conversions BMI CalculatorCalculate body mass index using height and weight.
On-device · Usually <1 sec → Files & images PDF to WordConvert PDFs into downloadable Word files in your browser.
On-device · Usually 5–30 sec → Files & images Image CompressorReduce image size locally in your browser.
On-device · Usually 1–5 sec → Files & images QR Code GeneratorCreate a QR code from a link or any text.
On-device · Usually <1 sec →No matching tools
Go deeper by topic
Four focused workflows
01 JSON Tools
Format, validate, compare, minify, and convert JSON to YAML or XML.
Open tools → 02 Barcode ToolsGenerate, read, check, and print Code 128, Code 39, EAN-13, UPC, and ISBN barcodes.
Open tools → 03 Everyday CalculatorsHandle time zones, currency, timestamps, units, percentages, age, and salary calculations.
Open tools → 04 File & Image ToolsImage conversion, compression, Base64, screenshot helpers, and PDF-to-Word workflows.
Open tools →Transparent processing
Know where your data goes before you start.
Most tools process input in the current browser. Live rates, translation, optional city search, and tools that connect to an endpoint you enter are clearly labeled before use.
Read the privacy policy →They use the network only when a public service or your own endpoint is required.
No sign-up and no server-side project workspace.