Tools

Browse free browser-based tools by category. Developer utilities like the device mockup generator, academic calculators like the Karachi University, FAST University, and SZABIST University GPA tools, finance calculators such as ROI, rent vs buy, SIP (Systematic Investment Plan), SWP (Systematic Withdrawal Plan), FIRE (Financial Independence, Retire Early), Pakistan salary tax, retirement planning tools, and specialized utilities like the Oman gratuity calculator, CSV to SQL, CSV to JSON, CSV to XML, CSV to Array, JSON to CSV, and Array to CSV, and more — no signup, everything runs locally.

Format, encode, decode, convert data, and generate browser-based assets.

• CSV Converter

  Free

  CSV to SQL, CSV to JSON, CSV to XML, CSV to Array, JSON to CSV, and Array to CSV. Upload and download .sql, .json, .xml, and .csv files.

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• Device Mockup Generator

  Free

  Upload a screenshot and preview it in generic phone, tablet, and desktop frames, then download PNG mockups.

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• JSON Formatter

  Free

  Format, beautify, and validate JSON in your browser with error highlighting.

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• Base64 Encoder / Decoder

  Free

  Encode text to Base64 or decode Base64 strings with full UTF-8 support.

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• JWT Decoder

  Free

  Decode JWT header and payload, view time claims, and copy formatted JSON.

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• URL Encoder / Decoder

  Free

  Percent-encode text for URLs or decode URL-encoded strings instantly.

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• UUID Generator

  Free

  Generate cryptographically random UUID v4 values — single or bulk.

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