Developer tools
Decode, build and debug faster: JWT, cron, encodings and more.
AI Token Counter
Count tokens and estimate cost for GPT-5, Claude 4 and Gemini 3 before you call the API.
Runs in your browser
JSON to TypeScript
Turn any JSON payload into clean, typed TypeScript interfaces in one paste.
Runs in your browser
Linux errno Reference
Search Linux errno values by number, name or message.
Runs in your browser
AI API Compatibility Tester
Paste an OpenAI-format request and see what carries over to Anthropic, Gemini, Mistral, Cohere, Groq and Ollama, with the rewritten body for each.
Runs in your browser
AI Cost Calculator
Work out what an AI feature costs per month and per year across the 2026 models, ranked cheapest first.
Runs in your browser
AI Hallucination Risk Estimator
Paste any LLM response and see where it likely invented something, with a 0 to 100 risk score and a checklist of what to verify.
Runs in your browser
AI Prompt Generator
Describe a job once and get back a complete brief: role, context, facts, constraints, output shape, variants and review checks.
Runs in your browser
AI Text Cleaner
Strip filler, compare paragraphs and protect key terms, all in your browser.
Runs in your browser
Changelog Generator
Paste raw commits and get sorted release sections, changelog markdown, a SemVer check and a quick QA pass before you publish.
Runs in your browser
Code Comment Generator
Draft the code comments worth keeping: the ones that explain why a line exists, not what the syntax does.
Runs in your browser
CORS Debugger
Read the real response headers from any URL, see whether a preflight applies, pinpoint what is broken, and copy a server config fix.
Cron Expression Generator
Paste a cron expression, expand every field, read it in plain English and preview the real next run times.
Runs in your browser
find Command Generator
Build a Linux find command from dropdowns: path, name, type, size, age and an action, explained live.
Runs in your browser
HTTP Status Code Explainer
Type any HTTP status code to see its family, what it does to browsers and crawlers, and the SEO angle, with a reference table and a live URL check.
Runs in your browser
JSON to CSV and CSV to JSON Converter
Convert JSON to CSV and CSV back to JSON in your browser, with RFC 4180 quoting and type inference.
Runs in your browser
JWT Decoder and Claims Inspector
Decode a JWT, read its claims and weigh the signature risk, all in your browser.
Runs in your browser
Number Base Converter
Convert decimal, hex, binary and octal live in four linked boxes, with a custom base and two's complement.
Runs in your browser
Prompt Improver
Paste a rough AI prompt and get a diagnosis of what is missing, a clearer brief, the changes made and the questions only you can answer.
Runs in your browser
Regex Generator and Tester
Build a practical regex, set the boundaries and flags, then test it against your positive and negative cases. Runs locally in your browser.
Runs in your browser
sed Command Generator
Build a sed command without memorizing the syntax, with line addressing and an in-place flag that warns first.
Runs in your browser
Text Diff Checker
Compare two texts line by line, with ignore case, whitespace and blank line options, plus a unified diff you can copy.
Runs in your browser
Timestamp Converter
Convert any Unix timestamp to UTC, local time and ISO 8601, with batch and timezone views.
Runs in your browser
URL Encoder and Decoder
Decode percent-encoded URLs, parse the query string, flag tracking parameters and pull out nested redirects.
Runs in your browser
UUID Generator
Generate UUID v4 and v7, validate and export, all local.
Runs in your browser
QR Code Generator
Make scannable QR codes for URLs, Wi-Fi, email and text, fully in your browser.
Runs in your browser
Regex Tester
Test a JavaScript regex on real text, with named groups, replace preview and saved patterns.
Runs in your browser
JSON Formatter, Query and Diff
Format, query and diff JSON locally in your browser.
Runs in your browser
Color Converter
HEX, RGB, HSL, HSV and CMYK in one pass, with a live WCAG contrast check and copy-ready CSS tokens.
Runs in your browser
Text Case Converter
Convert text between camelCase, snake_case, Title Case and 8 more, with smart camelCase splitting.
Runs in your browser
Base64 Encoder and Decoder
Encode, decode and inspect Base64, Base64URL and data URIs, all in your browser.
Runs in your browser
Word and Character Counter
Count words, characters, sentences and paragraphs live, with reading time and platform limits.
Runs in your browser
XML Formatter, Parser and Audit
Format, parse and audit XML locally, with checks for sitemaps, feeds, SOAP and SVG.
Runs in your browser
YAML to JSON Converter
Convert YAML to JSON and JSON to YAML in your browser, with clear errors instead of wrong output.
Runs in your browser
YAML Validator and Linter
Validate YAML indentation, duplicate keys and config mistakes in your browser, with a JSON preview.
Runs in your browser
Reading in this category
Apple depasse Nvidia et redevient numero un mondial
Le 17 juillet 2026, Apple a brievement depasse Nvidia comme premiere capitalisation mondiale, pres de 4,9 trillions de dollars. Ce que cela dit.
Apple Overtakes Nvidia as World's Most Valuable Company
For part of Friday July 17, 2026, Apple passed Nvidia as the world's most valuable company near 4.9 trillion dollars. What the crown swap means.
Google repousse Gemini 3.5 Pro pour code et raisonnement
Google repousse Gemini 3.5 Pro apres des tests internes decevants sur le code et le raisonnement a long horizon, avec un lancement glisse de plusieurs mois.
Google Delays Gemini 3.5 Pro Over Coding and Reasoning Gaps
Google has delayed Gemini 3.5 Pro after the model missed internal targets on coding and long horizon reasoning, pushing the flagship months past its June date.
Thinking Machines lance Inkling, premier modele ouvert US
Thinking Machines publie Inkling, un modele MoE ouvert de 975 milliards de parametres, 41 milliards actifs, contexte d'un million de jetons, poids sur Hugging Face.
Thinking Machines Ships Inkling, a Leading US Open Model
Thinking Machines released Inkling, a 975 billion parameter open weight MoE with 41B active, a 1M token context, and weights on Hugging Face under an open license.
Fireworks leve 1,5 Md$ pour l'inference a grande echelle
Fireworks AI a boucle une serie D de 1,5 milliard de dollars a 17,5 milliards de valorisation. Pourquoi l'inference sur modeles ouverts specialises est le vrai sujet.
Fireworks Raises 1.5 Billion Series D for Inference
Fireworks AI closed a 1.5 billion dollar Series D at a 17.5 billion valuation. Why specialized open model inference is the story developers should read.
Moonshot lance Kimi K3, le plus grand modele ouvert
Moonshot AI a publie Kimi K3, un modele MoE ouvert de 2,8 mille milliards de parametres, contexte de 1M de jetons et mode reflexion, poids ouverts le 27 juillet.
Moonshot Releases Kimi K3, the Largest Open Model Yet
Moonshot AI shipped Kimi K3, a 2.8 trillion parameter open MoE model with a 1M token context and thinking mode, with open weights due July 27.
Anthropic prépare ses rendez-vous investisseurs avant l'IPO
Les banques Goldman Sachs, Morgan Stanley et JPMorgan organisent des rendez-vous investisseurs pour Anthropic, en vue d'une cotation dès octobre 2026.
Apple Intelligence validé en Chine avec Qwen d'Alibaba
Le régulateur chinois a approuvé Apple Intelligence le 15 juillet 2026, sur la base d'un accord pour faire tourner le modèle Qwen d'Alibaba dans iOS, macOS et visionOS.
Anthropic Lines Up Investor Meetings Ahead of an IPO
Bankers at Goldman Sachs, Morgan Stanley and JPMorgan are scheduling investor meetings for Anthropic, pointing to a listing as soon as October 2026.
Apple Intelligence Clears China With Alibaba's Qwen
China's Cyberspace Administration approved Apple Intelligence on July 15, 2026, on the back of a deal to run Alibaba's Qwen model inside iOS, iPadOS, macOS and visionOS.
Emergent lève 130 M de dollars et vaut 1,5 milliard
Emergent, plateforme indienne de création d'applications par IA lancée en juin 2025, lève 130 millions de dollars en série C à 1,5 milliard de valorisation.
Emergent Raises 130M at 1.5B for AI App Building
Emergent, an Indian AI coding platform launched in June 2025, raised a 130 million dollar Series C at a 1.5 billion valuation with 120 million in run rate revenue.
Apple ouvre son nouveau Siri IA à tous en bêta iOS 27
Apple a publié la bêta publique d'iOS 27 le 13 juillet 2026 avec le Siri IA repensé. Pour les développeurs, App Intents est désormais la seule porte d'entrée.
Apple Opens Its New AI Siri to Everyone in the iOS 27 Beta
Apple released the iOS 27 public beta on July 13, 2026, putting the redesigned AI Siri in front of everyone. For developers, App Intents is now the only way in.
Reflection signe 1 milliard de calcul avec Nebius
Reflection AI a signe un contrat de calcul de plus de 1 milliard de dollars avec Nebius, courant jusqu'en 2029, avec acces aux puces Nvidia GB300.
Reflection Signs 1 Billion Dollar Nebius Compute Deal
Reflection AI signed a compute deal worth over 1 billion dollars with Nebius, running through 2029 and giving it access to Nvidia GB300 chips to train open models.
OpenAI lance GPT-5.6 et ChatGPT Work, un agent de bureau
OpenAI a publie la famille GPT-5.6 (Sol, Terra, Luna) et ChatGPT Work, un agent de bureau avec Codex integre qui transforme un objectif en documents et code finis.
OpenAI Ships GPT-5.6 and ChatGPT Work, a Desktop Agent
OpenAI released the GPT-5.6 family (Sol, Terra, Luna) plus ChatGPT Work, a desktop agent with Codex built in that turns a goal into finished docs, sheets, and code.
Mistral ouvre Leanstral 1.5 pour prouver votre code correct
Mistral publie Leanstral 1.5, un modele open weights Apache 2.0 pour Lean 4 qui prouve le code correct et a trouve 5 bugs inconnus dans 57 depots reels.
Mistral Open Sources Leanstral 1.5 for Lean 4 Proofs
Mistral released Leanstral 1.5, an open weights Apache 2.0 model for Lean 4 that proves code correct and found 5 unknown bugs across 57 real repositories.
SambaNova leve 1 Md$ pour defier Nvidia sur l'inference
SambaNova a boucle la premiere partie d'une serie F d'un milliard de dollars a 11 milliards pour l'inference IA sur site. Pourquoi le pari anti Nvidia grossit.
SambaNova Raises 1B at 11B to Challenge Nvidia on Inference
SambaNova closed the first part of a 1 billion dollar Series F at an 11 billion valuation to scale on premises AI inference. Why the anti Nvidia bet grew.
Comment installer Qwen 3.7 en local avec Ollama (2026)
Installer Qwen en local en 2026 : Qwen 3.7 ouvert pas encore dispo, on lance le Qwen ouvert le plus récent avec Ollama (matériel, quantification, API).
How to Run Qwen 3.7 Locally with Ollama (2026)
How to run Qwen locally in 2026: Qwen 3.7 open weights are not out yet, so we set up the newest open Qwen with Ollama, by size, with a one-tag swap for 3.7.
The awk Cheatsheet: Process Text in Columns
A practical awk cheatsheet: print columns with $1 and $NF, set field separators with -F, filter rows by pattern, sum a column, and use BEGIN and END blocks.
Antiseche awk : traiter le texte en colonnes
Une antisèche awk : afficher des colonnes avec $1 et $NF, changer le séparateur avec -F, filtrer les lignes par motif, sommer une colonne, et les blocs BEGIN et END.
Antiseche Git : commandes du quotidien et sauvetages
Une antisèche git : voir le statut, indexer et committer, changer de branche, et se sortir d'affaire avec reset, restore, revert, stash et reflog.
The Git Cheatsheet: Everyday Commands and Quick Fixes
A practical git cheatsheet: check status, stage and commit, switch branches, and get out of trouble with reset, restore, revert, stash and reflog.
Antiseche de la commande sed : substituer et supprimer
Une antisèche sed : substituer avec s/ancien/nouveau/g, modifier un fichier sur place avec -i et une sauvegarde, supprimer des lignes, afficher des lignes avec -n p.
The sed Command Cheatsheet: Substitute and Delete
A practical sed cheatsheet: substitute with s/old/new/g, edit files in place with -i and a backup, delete lines, and print specific lines with -n p.
Anthropic Suspends Claude Fable 5 and Mythos 5
Anthropic disabled Claude Fable 5 and Mythos 5 worldwide after a US government order. The timeline, the trigger, and how to fall back to Opus 4.8 fast.
Build a Local AI Agent with Ollama + Qwen 2.5
How I run a local AI agent with Ollama and Qwen 2.5 in 2026: install on Windows, Linux or macOS, pick the model your VRAM fits, call it from Python and LangChain.
ChatGPT vs Claude vs Gemini 2026
A hands-on ChatGPT vs Claude vs Gemini comparison for 2026, ten real jobs tested through the APIs: code, research, writing, data, vision, cost and latency.
Claude Fable 5 vs Opus 4.8: One Day In
Claude Fable 5 vs Opus 4.8 after a mid-session swap on launch day: 95.0% vs 88.6% SWE-bench, exactly 2x the price, and the safety routing caveat.
curl Cheatsheet: Download Files and Test APIs
A practical curl cheatsheet: download and keep the remote name with curl -O, follow redirects with -L, fetch headers only with -I, and POST JSON with -d.
The find Command Cheatsheet: Recipes You Actually Use
A practical Linux find cheatsheet: find by -name, big files with -size +100M, recent ones with -mtime, delete with -delete, and run -exec on each hit.
Git Rebase vs Merge: A Visual Workflow Guide
Git rebase vs merge, decided in one mental model and five real situations: branch diagrams before and after, the exact commands, and the rule I never break.
The grep Cheatsheet: Search a File, Search a Tree
A practical Linux grep cheatsheet: search one file with grep pattern file, search a whole tree with grep -rn, ignore case with -i, invert with -v, and pick -E or -F.
Cheatsheet Python regex : 20 patterns essentiels
Cheatsheet Python regex : 20 patterns re testés, e-mail, IPv4, IPv6, URL, téléphone, ISO 8601, UUID, découpage CSV, lignes de log, slugs, avec l'edge case de chacun.
Python regex cheatsheet: 20 essential patterns explained
A Python regex cheatsheet of 20 tested re patterns: email, IPv4 and IPv6, URL, phone, ISO 8601, UUID, CSV split, log lines, slugs, with the edge case for each.
Web Workers in 2026: Patterns, Pitfalls and INP
Web Workers in 2026: the patterns I reach for, the ones I skip, transferables, SharedArrayBuffer, Comlink, and how to prove the move actually helped your INP.
Anthropic suspend Claude Fable 5 et Mythos 5
Anthropic a désactivé Claude Fable 5 et Mythos 5 partout après un ordre du gouvernement américain. La chronologie, le déclencheur, et le repli vers Opus 4.8.
Agent IA local avec Ollama + Qwen 2.5
Faire tourner un agent IA local avec Ollama et Qwen 2.5 en 2026 : installer sur Windows, Linux ou macOS, choisir le modèle selon la VRAM, l'appeler depuis Python.
ChatGPT vs Claude vs Gemini en 2026
Comparatif terrain ChatGPT vs Claude vs Gemini en 2026 : dix vrais boulots testés via les API (code, recherche, rédaction, data, vision, coût, latence).
Claude Fable 5 vs Opus 4.8 : un jour avec
Claude Fable 5 vs Opus 4.8 après un changement de modèle en pleine session : 95.0% vs 88.6% sur SWE-bench, exactement 2x le prix, et la réserve du routage sécurité.
L'antisèche curl : télécharger et tester des API
Antisèche curl pratique : télécharger en gardant le nom distant avec curl -O, suivre les redirections avec -L, voir les en-têtes avec -I, faire un POST JSON avec -d.
Antiseche de la commande find : les recettes utiles
Une antisèche find sous Linux : trouver par nom avec -name, les gros fichiers avec -size +100M, les récents avec -mtime, supprimer et lancer -exec sur un résultat.
Git rebase vs merge : guide visuel des workflows
Rebase ou merge avec git, tranché en un modèle mental et cinq situations réelles : branch diagrams avant-après, les commandes exactes, et la règle que je ne casse jamais.
L'antisèche grep : chercher dans un fichier, un arbre
Antisèche grep Linux : chercher dans un fichier, parcourir un arbre avec grep -rn, ignorer la casse avec -i, inverser avec -v, et choisir le moteur -E ou -F.
Web Workers en 2026 : patterns, pièges et INP
Web Workers en 2026 : les patterns que je sors vraiment, ceux que j'évite, transferable, SharedArrayBuffer, Comlink, et comment prouver le gain sur ton INP.