AI Tools

Transcribe speech from audio (wav/mp3/m4a/flac/ogg/webm/aac) to text, SRT, VTT or JSON using the grok-stt AI model. Up to 10 minutes.

AI Tools

AI-powered image content safety detector using NSFWJS to classify potentially inappropriate content with fallback analysis, supporting GIF/Animated WebP/APNG and JPEG/PNG/WEBP.

Text Processing

Encode, decode, visualize, and brute-force the Rail Fence transposition cipher. See the zigzag rail grid and try all rail counts to crack a ciphertext.

Health

Calculate the Apgar score to assess newborn condition at 1 minute and 5 minutes after birth. Five signs are each scored 0–2 at both time points: Appearance (skin color), Pulse (heart rate), Grimace (reflex irritability), Activity (muscle tone), and Respiration. Each time point totals 0–10. Interpretation: 7–10 reassuring; 4–6 moderately abnormal (may need assistance); 0–3 critically low (immediate resuscitation). The tool reports both the 1-min and 5-min scores, the change (delta), and per-time-point interpretation. A 5-min score, and especially the change from 1 to 5 min, indicates response to resuscitation; persistent low 5-min scores warrant continued resuscitation and reassessment at 10 min. Derived from Apgar 1953, reaffirmed by ACOG/AAP. The Apgar is a physiologic snapshot at a moment in time and is not, by itself, a marker of asphyxia or long-term neurologic outcome. Not medical advice.

Health

Calculate the CURB-65 score to assess community-acquired pneumonia (CAP) severity and guide the site of care. Each component scores 1 point: Confusion (new-onset disorientation), Urea > 7 mmol/L (BUN > 20 mg/dL), Respiratory rate ≥ 30/min, Blood pressure (systolic < 90 OR diastolic ≤ 60 mmHg), and Age ≥ 65. Range 0–5. Interpretation: 0–1 low risk (likely outpatient; 30-day mortality ~1.5–2.4%), 2 moderate (consider admission or supervised discharge, ~9.2%), 3–5 high risk (hospital admission; consider ICU for 4–5; mortality rises to ~57% at score 5). Endorsed by the British Thoracic Society. Derived from Lim et al. 2003 (Thorax). Not medical advice.

Health

Compare three pneumonia severity scores side-by-side from one set of inputs to support concordance reading. CURB-65 (0-5: Confusion, Urea, RR, BP, age ≥65) — quick bedside triage; PSI/PORT (Fine 1997, 5 risk classes) — the most accurate mortality stratification, more complex; SMART-COP (0-10, 2 points each for SBP <90 and hypoxia, 1 point each for multilobar CXR, albumin <3.5, RR ≥25, tachycardia ≥125, confusion, pH <7.35) — predicts need for ICU respiratory/vasopressor support. Each score has a different focus: CURB-65 is fast; PSI is more precise; SMART-COP identifies who needs ICU. The tool reports each score's total/category/interpretation and an agreement analysis (whether all three point to outpatient/admission/ICU). When scores disagree, favor the more conservative disposition. Derived from Lim 2003, Fine 1997, Charles 2008. Not medical advice.

Health

Calculate the NIH Stroke Scale (NIHSS) to quantify acute stroke neurologic deficit across 11 categories (15 scored items, with left & right limb motor graded separately). Items: 1a Level of consciousness (0–3), 1b LOC questions (0–2), 1c LOC commands (0–2), 2 Best gaze (0–2), 3 Visual fields (0–3), 4 Facial palsy (0–3), 5a/5b Motor arm left/right (0–4 each), 6a/6b Motor leg left/right (0–4 each), 7 Limb ataxia (0–2), 8 Sensory (0–2), 9 Best language (0–3), 10 Dysarthria (0–2), 11 Extinction/inattention (0–2). Both left and right limb motor scores are summed into the total (standard NIHSS); the tool also reports the more-affected side (max of left/right) for clinical context. Range 0–42; higher = more severe. Interpretation: 0 no symptoms, 1–4 minor, 5–15 moderate, 16–20 moderate-to-severe, 21–42 severe. Derived from Brott et al. 1989 (Stroke) and NINDS instructions. Scoring reliability is examiner-dependent and should be performed by trained personnel. Not medical advice.

Health

Calculate the Ranson criteria to grade acute pancreatitis severity and estimate mortality (non-gallstone/classic variant). Five criteria at admission (age >55, WBC >16,000, glucose >200, AST >250, LDH >350) and six at 48 hours (hematocrit fall >10%, BUN rise >5 mg/dL, calcium <8, PaO₂ <60, base deficit >4, fluid sequestration >6 L); each = 1 point, total 0–11. Interpretation: 0-2 mild (~2% mortality), 3-4 moderate (~15%), 5-6 severe (~40%), ≥7 very severe (~100%). The gallstone variant uses different thresholds and is NOT included. Derived from Ranson et al. 1974. Not medical advice.

Health

Calculate the COMPLETE (post-endoscopy) Rockall score for acute upper gastrointestinal hemorrhage (AUGIB) to predict rebleeding and mortality. Five parameters: Age (<60 =0, 60–79 =1, ≥80 =2); Shock (none SBP≥100 & HR<100 =0, tachycardia SBP≥100 & HR≥100 =1, hypotension SBP<100 =2); Comorbidity (none =0, other major =2, renal/liver failure or disseminated malignancy =3); Endoscopic diagnosis (Mallory-Weiss or no lesion/stigmata =0, all other =1, upper GI malignancy =2); Stigmata of recent hemorrhage (none or dark spot only =0, blood/adherent clot/visible vessel =2). The first three parameters alone form the PRE-ENDOSCOPIC score (0–7); all five form the COMPLETE score (0–11). Interpretation: ≤2 low risk (~4.9% rebleeding, ~0% mortality — consider early discharge); ≥5 high risk. Derived from Rockall et al. 1996 (Gut). The Glasgow-Blatchford Score better identifies very-low-risk patients. Not medical advice.

Text Processing

Line/word/char diff with ignore rules, three-way merge with conflict markers, and unified patch

Health

Calculate the Urine Anion Gap (UAG) to differentiate causes of normal-anion-gap (hyperchloremic) metabolic acidosis: UAG = (U_Na + U_K) − U_Cl, in mmol/L. The UAG is an inverse surrogate for urinary NH₄⁺ excretion. A negative UAG (typically −20 to −50) indicates appropriate high NH₄⁺ excretion → extrarenal (GI) bicarbonate loss (diarrhea, fistulae, ureteral diversions). A positive/high UAG indicates low NH₄⁺ excretion → renal tubular acidosis (distal/type 1, type 4 hypoaldosteronism, proximal/type 2 variable). Reference range ≈ 0 to +40 mmol/L. Caveats: unreliable with unmeasured urine anions (ketoacidosis, toluene/hippurate, D-lactate) or when urine sodium < 25 mmol/L (use urine osmolar gap instead). Derived from Batlle CJASN 2012, Ito 2025, Bonner AJKD 2025. Interpret with blood gas and full clinical context. Not medical advice.

Health

Calculate the APACHE II (Acute Physiology and Chronic Health Evaluation II) ICU severity score. APACHE II = Acute Physiology Score (12 variables, each 0–4 using the worst value in the first 24 h) + Age points (0–6) + Chronic Health points (0/2/5). Range 0–71; higher scores indicate worse prognosis. Oxygenation uses the A-a gradient when FiO₂ ≥ 0.5, otherwise PaO₂. Creatinine points are doubled when acute renal failure is indicated. GCS contributes 15 − GCS. Also reports the base-model predicted mortality: R = 1/(1 + e^(−logit)), logit = −3.517 + 0.146 × score (diagnostic-category weight not included). Thresholds cross-verified against Knaus 1985 (Crit Care Med) and the SFAR scoring table. Not a substitute for clinical judgement. Not medical advice.