À propos des fichiers TXT
TXT (Plain Text · Format de document)
Plain Text (.txt) est un format de fichier pris en charge par KaijuConverter pour l’archivage, l’échange professionnel et la conversion multiplateforme.
Famille
Documents & Text
Extension
.txt
Type MIME
text/plain
Utilisable comme
COMMENT TXT
A VU LE JOUR.
The plain text file predates almost every other format on this page. When ASCII was standardized in 1963 (with a 1967 revision) it defined the 128 characters that every computer of the era would agree on. A file that contained nothing but those characters, separated by newlines, was the simplest possible document — and it became the universal interchange format for source code, configuration files, logs, and correspondence.
The arrival of Unicode in the 1990s — and UTF-8 in particular — extended the plain text file to cover every writing system on Earth without changing its core premise: just characters, no styling. Fifty years on, .txt is still the most portable format in existence.
CURIOSITÉS ET
ANECDOTES.
Every operating system disagrees about what a "line ending" is: CRLF on Windows, LF on Unix, CR on classic Mac.
UTF-8 was designed by Ken Thompson and Rob Pike on a placemat at a New Jersey diner in 1992.
The largest text file ever published is the English Wikipedia XML dump — over 100 GB uncompressed.
A .txt file can theoretically hold any content; only by convention does it mean "plain text".
The Byte Order Mark (BOM) at the start of some UTF files is a zero-width, invisible character that trips up countless parsers.
POINTS FORTS ET
LIMITES.
Points forts
- Universally readable — every operating system, every editor, every programming language.
- Zero metadata overhead: the file size equals the character count (for ASCII).
- Safe to diff, grep, version-control, and pipe through command-line tools.
- Immune to format obsolescence: a text file from 1970 still opens today.
- Tiny footprint for structured data like logs or configuration.
Limites
- No styling, images, or embedded structure — just characters.
- Character encoding ambiguity (ISO-8859-1 vs UTF-8 vs Windows-1252) causes "mojibake".
- Line-ending differences between OSes still cause subtle bugs today.
- No way to carry hyperlinks, tables, or formatting without a convention on top (like Markdown).
Tailles et poids typiques
Short note
< 1 KB
README file
2–20 KB
Full novel (~90,000 words)
500 KB – 1 MB
Server log file (daily)
10 MB – 1 GB
Spécifications techniques
- MIME type
- text/plain
- Common encodings
- UTF-8, UTF-16, ASCII, ISO-8859-1, Windows-1252
- Line endings
- LF (Unix), CRLF (Windows), CR (classic Mac)
- Max file size
- Limited only by filesystem (no format-level limit)
- Structure
- None — flat sequence of characters
CONVERTIR DEPUIS
TXT
CONVERTIR EN
TXT
Cas d'usage courants
Notes, logs, configuration files, data exchange, READMEs.
Formats associés
Comparaisons populaires
TXT vs JSON
Différences, taille de fichier et quand choisir chaque format.
TXT vs CSV
Différences, taille de fichier et quand choisir chaque format.
TXT vs SRT
Différences, taille de fichier et quand choisir chaque format.
TXT vs VTT
Différences, taille de fichier et quand choisir chaque format.
TXT vs DOCX
Différences, taille de fichier et quand choisir chaque format.
TXT vs MD
Différences, taille de fichier et quand choisir chaque format.
Conversions TXT populaires
Les formats cibles les plus demandés à partir d'un fichier TXT.
Questions fréquentes sur TXT
Questions fréquentes
Importez simplement votre fichier TXT dans KaijuConverter pour le convertir en PDF, JPG, PNG ou tout autre format standard sans installer de logiciel.
Oui, la conversion est gratuite jusqu'à 25 Mo (et jusqu'à 1 Go avec le Pass 24h ou Pro). Tous les fichiers sont chiffrés via TLS 1.3 et supprimés automatiquement après 60 minutes.
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