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Online Conversion Tools

Browse 369 online conversion tools for transforming data and files between supported formats. Use them in your browser with secure server-side processing.

Explore 369 conversion tools for changing supported files and data from one format or representation to another. No software installation is needed; tools are operated in your browser while processing runs on Elysia Tools servers.

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FAQ

What can I do with Conversion tools?

You can convert supported files and data between available formats or representations using browser-based tools in this category.

Do I need to install software?

No. You can use these conversion tools through your browser without installing desktop software.

How is my data handled?

Your requests are processed on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

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Image, audio, and video processing, conversion, and optimization tools

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Calculators, numerics, date logic, statistics, and finance tools

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Color, layout, graphics, visual styling, and design helper tools

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Writing, cleanup, formatting, extraction, and text analysis tools

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Format, file, archive, unit, and encoding conversion tools

UI Screenshot Structure Review and Development Handoff
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Compression

7Z to GZ Converter

Convert 7Z archive to GZ format (requires 7zip command)

Compression

7Z to TAR Converter

Convert 7Z archive to TAR format (requires 7zip command)

Compression

7Z to ZIP Converter

Convert 7Z archive to ZIP format (requires 7zip command)

Data Analysis

A/B Test Significance Calculator

Compute conversion-rate or mean differences, 95%/99% confidence intervals, two-sided p-values (Z-test for proportions, Welch t for continuous metrics), lift, sample size for 80%/90% power, recommended experiment days, plus sequential-testing and Bonferroni multiple-comparison warnings.

Math & Numbers

Acre to Hectare

Convert acres to hectares with configurable decimal precision

Math & Numbers

Acre to Square Feet

Convert acres to square feet with configurable decimal precision

Math & Numbers

Acre to Square Meter

Convert acres to square meters with configurable decimal precision

Math & Numbers

Angle Unit Converter

Convert between different angle units (degrees, radians, gradians, minutes, seconds, etc.)

Math & Numbers

Arcminutes to Degrees

Convert arcminutes to degrees with configurable decimal precision

Math & Numbers

Arcseconds to Degrees

Convert arcseconds to degrees with configurable decimal precision

Math & Numbers

Area Unit Converter

Convert between different area units (square meters, square feet, acres, hectares, etc.)

Format Conversion

ASCII85 Converter

Encode and decode text to/from ASCII85 format (Adobe version)

Format Conversion

Atbash Cipher

Encode and decode text using Atbash substitution cipher (reverses the alphabet)

Math & Numbers

ATM to KPa

Convert standard atmospheres to kilopascals with configurable decimal precision

Format Conversion

Avro Converter

Encode and decode data to/from Avro data serialization format with schema support

Math & Numbers

Bar to KPa

Convert bar to kilopascals with configurable decimal precision

Math & Numbers

Bar to PSI

Convert bar to pounds per square inch with configurable decimal precision

Format Conversion

Base32 Converter

Encode and decode text to/from Base32 format with multiple variants

Format Conversion

Base45 Converter

Encode and decode text to/from Base45 format (RFC 9285)

Format Conversion

Base58 Converter

Encode and decode text to/from Base58 format with Bitcoin and Ripple variants

Format Conversion

Base62 Converter

Encode and decode text to/from Base62 format (0-9, A-Z, a-z)

Format Conversion

Base64 Converter

Encode and decode data to/from Base64 format with URL-safe options

Format Conversion

Base64 Encoder/Decoder

Encode and decode Base64 strings

Format Conversion

Base64URL Encoder/Decoder

Encode and decode Base64URL (URL-safe Base64 variant used by JWT/JWS/JWE), with conversions between standard and URL-safe Base64

Math

502 tools

Browse 502 online math tools for working with math operations, data, and files in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.

Format Conversion

142 tools

Browse 142 format conversion tools for converting files and data between supported formats in your browser.

Excel

56 tools

Browse 56 online Excel tools for working with XLSX, XLS, and spreadsheet files. Use them in your browser with server-side processing; text inputs are not stored and uploaded files are deleted after 6 hours.

XLSX

46 tools

Browse 46 online XLSX tools to process, convert, validate, and manage XLSX files and data in your browser.

Unit

44 tools

Browse 44 online Unit tools for processing, converting, validating, and managing unit data. No software installation is needed.

JSON

107 tools

Browse 107 online JSON tools to validate, format, convert, and manage JSON data and files in your browser.