Useless Whatever Converter

Convert anything
into anything

Texts, images, data, a secret generator and completely useless things. A lightweight converter on Nuxt 4: text conversions run right in your browser, heavy formats — on Nitro. No separate backend and no extra RAM.

Start converting Browse formats

150+

formats

0 bytes

to the server for text

2 levels

browser + Nitro

Conversion studio

Try it right now — everything is computed in your browser

client-side (no network)

……

Input

0 chars

Result

0 chars

Ctrl+Enter— quick conversion

formats

Everything can be converted

Not just the popular formats — UWC is meant to be a “convert anything, into anything” converter: from translit and ROT13 to GeoJSON and vCard.

JSON YAML TOML XML CSV TSV Markdown HTML TXT INI Properties ENV JSONP PNG JPEG WebP GIF SVG AVIF TIFF HEIC ICO BMP CUR PPM TGA PCX XBM PDF DOCX XLSX PPTX EPUB RTF MP3 WAV OGG FLAC AIFF CAF Opus WebM M4A QOA Base64 Base32 Base36 Base62 Ascii85 Quoted-Printable Uuencode Punycode / IDN Hex QR vCard iCal GeoJSON KML GPX SQL ZIP TAR GZIP Brotli BZIP2 Zstandard XZ LZMA CAB CPIO AR / DEB ISO XAR compress (.Z) MD5 CRC32 UUID ROT13 Morse ROT47 Caesar cipher Atbash A1Z26 Bacon Tap code Zero-width steganography Line tools Base converter ISO duration EBCDIC Baudot / ITA2 Full-width / Half-width Unix timestamp / ISO 8601 MAC address HEX / RGB / HSL Roman numerals IBAN Chmod JWT Glob / regex C escapes Shell quoting Windows / POSIX paths TypeScript interfaces Zalgo Slugify Checksums HJSON BBCode Leet Translit SHA-256 UUID v4 Reverse Stats JSON YAML TOML XML CSV TSV Markdown HTML TXT INI Properties ENV JSONP PNG JPEG WebP GIF SVG AVIF TIFF HEIC ICO BMP CUR PPM TGA PCX XBM PDF DOCX XLSX PPTX EPUB RTF MP3 WAV OGG FLAC AIFF CAF Opus WebM M4A QOA Base64 Base32 Base36 Base62 Ascii85 Quoted-Printable Uuencode Punycode / IDN Hex QR vCard iCal GeoJSON KML GPX SQL ZIP TAR GZIP Brotli BZIP2 Zstandard XZ LZMA CAB CPIO AR / DEB ISO XAR compress (.Z) MD5 CRC32 UUID ROT13 Morse ROT47 Caesar cipher Atbash A1Z26 Bacon Tap code Zero-width steganography Line tools Base converter ISO duration EBCDIC Baudot / ITA2 Full-width / Half-width Unix timestamp / ISO 8601 MAC address HEX / RGB / HSL Roman numerals IBAN Chmod JWT Glob / regex C escapes Shell quoting Windows / POSIX paths TypeScript interfaces Zalgo Slugify Checksums HJSON BBCode Leet Translit SHA-256 UUID v4 Reverse Stats

Stats Reverse UUID v4 SHA-256 Translit Leet BBCode HJSON Checksums Slugify Zalgo TypeScript interfaces Windows / POSIX paths Shell quoting C escapes Glob / regex JWT Chmod IBAN Roman numerals HEX / RGB / HSL MAC address Unix timestamp / ISO 8601 Full-width / Half-width Baudot / ITA2 EBCDIC ISO duration Base converter Line tools Zero-width steganography Tap code Bacon A1Z26 Atbash Caesar cipher ROT47 Morse ROT13 UUID CRC32 MD5 compress (.Z) XAR ISO AR / DEB CPIO CAB LZMA XZ Zstandard BZIP2 Brotli GZIP TAR ZIP SQL GPX KML GeoJSON iCal vCard QR Hex Punycode / IDN Uuencode Quoted-Printable Ascii85 Base62 Base36 Base32 Base64 QOA M4A WebM Opus CAF AIFF FLAC OGG WAV MP3 RTF EPUB PPTX XLSX DOCX PDF XBM PCX TGA PPM CUR BMP ICO HEIC TIFF AVIF SVG GIF WebP JPEG PNG JSONP ENV Properties INI TXT HTML Markdown TSV CSV XML TOML YAML JSON Stats Reverse UUID v4 SHA-256 Translit Leet BBCode HJSON Checksums Slugify Zalgo TypeScript interfaces Windows / POSIX paths Shell quoting C escapes Glob / regex JWT Chmod IBAN Roman numerals HEX / RGB / HSL MAC address Unix timestamp / ISO 8601 Full-width / Half-width Baudot / ITA2 EBCDIC ISO duration Base converter Line tools Zero-width steganography Tap code Bacon A1Z26 Atbash Caesar cipher ROT47 Morse ROT13 UUID CRC32 MD5 compress (.Z) XAR ISO AR / DEB CPIO CAB LZMA XZ Zstandard BZIP2 Brotli GZIP TAR ZIP SQL GPX KML GeoJSON iCal vCard QR Hex Punycode / IDN Uuencode Quoted-Printable Ascii85 Base62 Base36 Base32 Base64 QOA M4A WebM Opus CAF AIFF FLAC OGG WAV MP3 RTF EPUB PPTX XLSX DOCX PDF XBM PCX TGA PPM CUR BMP ICO HEIC TIFF AVIF SVG GIF WebP JPEG PNG JSONP ENV Properties INI TXT HTML Markdown TSV CSV XML TOML YAML JSON

Text & markup

JSON, YAML, XML and other “brackets” — both ways.

JSON YAML TOML XML CSV TSV Markdown HTML TXT INI Properties ENV JSONP

Images

Everything to PNG, from PNG to everything. AVIF and HEIC via sharp are on the way.

PNG JPEG WebP GIF SVG AVIF TIFF HEIC ICO BMP CUR PPM TGA PCX XBM

Documents

PDF, Office and EPUB. Server-side via pure-JS libraries on Nitro.

PDF DOCX HTML XLSX PPTX EPUB RTF TXT

Audio

MP3, WAV, OGG, FLAC, AIFF, CAF, Opus, WebM, M4A, QOA — all in your browser via Web Audio + the audio/encode library.

MP3 WAV OGG FLAC AIFF CAF Opus WebM M4A QOA

Data & archives

Base64, QR, calendars, geodata and ZIP. Much of it by hand, without heavy dependencies.

Base64 Base32 Base36 Base62 Ascii85 Quoted-Printable Uuencode Punycode / IDN Hex QR vCard iCal GeoJSON KML GPX SQL ZIP TAR GZIP Brotli BZIP2 Zstandard XZ LZMA CAB CPIO AR / DEB ISO XAR compress (.Z) MD5 CRC32 UUID

“Useless”

Translit, ROT13, leet, text stats. Useless — and that's exactly why it's useful.

ROT13 Morse ROT47 Caesar cipher Atbash A1Z26 Bacon Tap code Zero-width steganography Line tools Base converter ISO duration EBCDIC Baudot / ITA2 Full-width / Half-width Unix timestamp / ISO 8601 MAC address HEX / RGB / HSL Roman numerals IBAN Chmod JWT Glob / regex C escapes Shell quoting Windows / POSIX paths TypeScript interfaces Zalgo Slugify Checksums HJSON BBCode Leet Translit SHA-256 UUID v4 Reverse Stats

why UWC

Lightweight, as intended

No heavy runtimes just for “Hello, World”: every converter runs at the cheapest level where that's possible.

0 bytes on the server

Text converters are pure functions: they run in the browser, Nitro doesn't even wake up.

Nitro inside

The server side lives in the same Nuxt process: no separate backend and no extra HTTP hop.

Streaming, not buffers

Large files flow as streams (ReadableStream) instead of landing in memory whole. RAM stays calm.

Files are not stored

Receive → convert → deliver → forget. No persistent storage: private and cheap.

Convert anything into anything